21378047570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2789}}^1\times {\mathrm{4099}}^1$

素因数の和:6923

約数の個数: 64

約数和(自身を含む): 44474832000

約数和(自身を除く): 23096784430

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 2789, 4099, 5578, 8198, 13945, 20495, 27890, 30679, 40990, 45089, 47413, 61358, 69683, 90178, 94826, 139366, 153395, 225445, 237065, 306790, 348415, 450890, 474130, 521543, 696830, 766513, 1043086, 1533026, 2607715, 3832565, 5215430, 7665130, 11432111, 22864222, 57160555, 114321110, 125753221, 194345887, 251506442, 388691774, 628766105, 971729435, 1257532210, 1943458870, 2137804757, 4275609514, 10689023785, 21378047570]

約数ペア:

[(1, 21378047570), (2, 10689023785), (5, 4275609514), (10, 2137804757), (11, 1943458870), (17, 1257532210), (22, 971729435), (34, 628766105), (55, 388691774), (85, 251506442), (110, 194345887), (170, 125753221), (187, 114321110), (374, 57160555), (935, 22864222), (1870, 11432111), (2789, 7665130), (4099, 5215430), (5578, 3832565), (8198, 2607715), (13945, 1533026), (20495, 1043086), (27890, 766513), (30679, 696830), (40990, 521543), (45089, 474130), (47413, 450890), (61358, 348415), (69683, 306790), (90178, 237065), (94826, 225445), (139366, 153395)]