21977262

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{359}}^1$

素因数の和:565

約数の個数: 48

約数和(自身を含む): 50544000

約数和(自身を除く): 28566738

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 179, 342, 358, 359, 537, 718, 1074, 1077, 1611, 2154, 3222, 3231, 3401, 6462, 6802, 6821, 10203, 13642, 20406, 20463, 30609, 40926, 61218, 61389, 64261, 122778, 128522, 192783, 385566, 578349, 1156698, 1220959, 2441918, 3662877, 7325754, 10988631, 21977262]

約数ペア:

[(1, 21977262), (2, 10988631), (3, 7325754), (6, 3662877), (9, 2441918), (18, 1220959), (19, 1156698), (38, 578349), (57, 385566), (114, 192783), (171, 128522), (179, 122778), (342, 64261), (358, 61389), (359, 61218), (537, 40926), (718, 30609), (1074, 20463), (1077, 20406), (1611, 13642), (2154, 10203), (3222, 6821), (3231, 6802), (3401, 6462)]