20921693478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{7759}}^1$

素因数の和:7930

約数の個数: 128

約数和(自身を含む): 52445184000

約数和(自身を除く): 31523490522

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 31, 38, 42, 57, 62, 93, 109, 114, 133, 186, 217, 218, 266, 327, 399, 434, 589, 651, 654, 763, 798, 1178, 1302, 1526, 1767, 2071, 2289, 3379, 3534, 4123, 4142, 4578, 6213, 6758, 7759, 8246, 10137, 12369, 12426, 14497, 15518, 20274, 23277, 23653, 24738, 28994, 43491, 46554, 47306, 54313, 64201, 70959, 86982, 108626, 128402, 141918, 147421, 162939, 192603, 240529, 294842, 325878, 385206, 442263, 449407, 481058, 721587, 845731, 884526, 898814, 1031947, 1348221, 1443174, 1683703, 1691462, 2063894, 2537193, 2696442, 3095841, 3367406, 4570051, 5051109, 5074386, 5920117, 6191682, 9140102, 10102218, 11840234, 13710153, 16068889, 17760351, 26217661, 27420306, 31990357, 32137778, 35520702, 48206667, 52435322, 63980714, 78652983, 95971071, 96413334, 112482223, 157305966, 183523627, 191942142, 224964446, 337446669, 367047254, 498135559, 550570881, 674893338, 996271118, 1101141762, 1494406677, 2988813354, 3486948913, 6973897826, 10460846739, 20921693478]

約数ペア:

[(1, 20921693478), (2, 10460846739), (3, 6973897826), (6, 3486948913), (7, 2988813354), (14, 1494406677), (19, 1101141762), (21, 996271118), (31, 674893338), (38, 550570881), (42, 498135559), (57, 367047254), (62, 337446669), (93, 224964446), (109, 191942142), (114, 183523627), (133, 157305966), (186, 112482223), (217, 96413334), (218, 95971071), (266, 78652983), (327, 63980714), (399, 52435322), (434, 48206667), (589, 35520702), (651, 32137778), (654, 31990357), (763, 27420306), (798, 26217661), (1178, 17760351), (1302, 16068889), (1526, 13710153), (1767, 11840234), (2071, 10102218), (2289, 9140102), (3379, 6191682), (3534, 5920117), (4123, 5074386), (4142, 5051109), (4578, 4570051), (6213, 3367406), (6758, 3095841), (7759, 2696442), (8246, 2537193), (10137, 2063894), (12369, 1691462), (12426, 1683703), (14497, 1443174), (15518, 1348221), (20274, 1031947), (23277, 898814), (23653, 884526), (24738, 845731), (28994, 721587), (43491, 481058), (46554, 449407), (47306, 442263), (54313, 385206), (64201, 325878), (70959, 294842), (86982, 240529), (108626, 192603), (128402, 162939), (141918, 147421)]