20027007

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:75

約数の個数: 120

約数和(自身を含む): 42514560

約数和(自身を除く): 22487553

約数列:

[1, 3, 7, 9, 11, 13, 19, 21, 27, 33, 39, 57, 63, 77, 81, 91, 99, 117, 133, 143, 169, 171, 189, 209, 231, 247, 273, 297, 351, 399, 429, 507, 513, 567, 627, 693, 741, 819, 891, 1001, 1053, 1183, 1197, 1287, 1463, 1521, 1539, 1729, 1859, 1881, 2079, 2223, 2457, 2717, 3003, 3211, 3549, 3591, 3861, 4389, 4563, 5187, 5577, 5643, 6237, 6669, 7371, 8151, 9009, 9633, 10647, 10773, 11583, 13013, 13167, 13689, 15561, 16731, 16929, 19019, 20007, 22477, 24453, 27027, 28899, 31941, 35321, 39039, 39501, 46683, 50193, 57057, 67431, 73359, 81081, 86697, 95823, 105963, 117117, 118503, 140049, 150579, 171171, 202293, 220077, 247247, 260091, 317889, 351351, 513513, 606879, 741741, 953667, 1054053, 1540539, 1820637, 2225223, 2861001, 6675669, 20027007]

約数ペア:

[(1, 20027007), (3, 6675669), (7, 2861001), (9, 2225223), (11, 1820637), (13, 1540539), (19, 1054053), (21, 953667), (27, 741741), (33, 606879), (39, 513513), (57, 351351), (63, 317889), (77, 260091), (81, 247247), (91, 220077), (99, 202293), (117, 171171), (133, 150579), (143, 140049), (169, 118503), (171, 117117), (189, 105963), (209, 95823), (231, 86697), (247, 81081), (273, 73359), (297, 67431), (351, 57057), (399, 50193), (429, 46683), (507, 39501), (513, 39039), (567, 35321), (627, 31941), (693, 28899), (741, 27027), (819, 24453), (891, 22477), (1001, 20007), (1053, 19019), (1183, 16929), (1197, 16731), (1287, 15561), (1463, 13689), (1521, 13167), (1539, 13013), (1729, 11583), (1859, 10773), (1881, 10647), (2079, 9633), (2223, 9009), (2457, 8151), (2717, 7371), (3003, 6669), (3211, 6237), (3549, 5643), (3591, 5577), (3861, 5187), (4389, 4563)]