21144552

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:195

約数の個数: 128

約数和(自身を含む): 63745920

約数和(自身を除く): 42601368

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 61, 66, 78, 88, 101, 104, 122, 132, 143, 156, 183, 202, 244, 264, 286, 303, 312, 366, 404, 429, 488, 572, 606, 671, 732, 793, 808, 858, 1111, 1144, 1212, 1313, 1342, 1464, 1586, 1716, 2013, 2222, 2379, 2424, 2626, 2684, 3172, 3333, 3432, 3939, 4026, 4444, 4758, 5252, 5368, 6161, 6344, 6666, 7878, 8052, 8723, 8888, 9516, 10504, 12322, 13332, 14443, 15756, 16104, 17446, 18483, 19032, 24644, 26169, 26664, 28886, 31512, 34892, 36966, 43329, 49288, 52338, 57772, 67771, 69784, 73932, 80093, 86658, 104676, 115544, 135542, 147864, 160186, 173316, 203313, 209352, 240279, 271084, 320372, 346632, 406626, 480558, 542168, 640744, 813252, 881023, 961116, 1626504, 1762046, 1922232, 2643069, 3524092, 5286138, 7048184, 10572276, 21144552]

約数ペア:

[(1, 21144552), (2, 10572276), (3, 7048184), (4, 5286138), (6, 3524092), (8, 2643069), (11, 1922232), (12, 1762046), (13, 1626504), (22, 961116), (24, 881023), (26, 813252), (33, 640744), (39, 542168), (44, 480558), (52, 406626), (61, 346632), (66, 320372), (78, 271084), (88, 240279), (101, 209352), (104, 203313), (122, 173316), (132, 160186), (143, 147864), (156, 135542), (183, 115544), (202, 104676), (244, 86658), (264, 80093), (286, 73932), (303, 69784), (312, 67771), (366, 57772), (404, 52338), (429, 49288), (488, 43329), (572, 36966), (606, 34892), (671, 31512), (732, 28886), (793, 26664), (808, 26169), (858, 24644), (1111, 19032), (1144, 18483), (1212, 17446), (1313, 16104), (1342, 15756), (1464, 14443), (1586, 13332), (1716, 12322), (2013, 10504), (2222, 9516), (2379, 8888), (2424, 8723), (2626, 8052), (2684, 7878), (3172, 6666), (3333, 6344), (3432, 6161), (3939, 5368), (4026, 5252), (4444, 4758)]