21100878

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 49248000

約数和(自身を除く): 28147122

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 59, 74, 111, 118, 177, 179, 222, 333, 354, 358, 531, 537, 666, 999, 1062, 1074, 1593, 1611, 1998, 2183, 3186, 3222, 4366, 4833, 6549, 6623, 9666, 10561, 13098, 13246, 19647, 19869, 21122, 31683, 39294, 39738, 58941, 59607, 63366, 95049, 117882, 119214, 178821, 190098, 285147, 357642, 390757, 570294, 781514, 1172271, 2344542, 3516813, 7033626, 10550439, 21100878]

約数ペア:

[(1, 21100878), (2, 10550439), (3, 7033626), (6, 3516813), (9, 2344542), (18, 1172271), (27, 781514), (37, 570294), (54, 390757), (59, 357642), (74, 285147), (111, 190098), (118, 178821), (177, 119214), (179, 117882), (222, 95049), (333, 63366), (354, 59607), (358, 58941), (531, 39738), (537, 39294), (666, 31683), (999, 21122), (1062, 19869), (1074, 19647), (1593, 13246), (1611, 13098), (1998, 10561), (2183, 9666), (3186, 6623), (3222, 6549), (4366, 4833)]