21995960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4621}}^1$

素因数の和:4656

約数の個数: 64

約数和(自身を含む): 59901120

約数和(自身を除く): 37905160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4621, 4760, 9242, 18484, 23105, 32347, 36968, 46210, 64694, 78557, 92420, 129388, 157114, 161735, 184840, 258776, 314228, 323470, 392785, 549899, 628456, 646940, 785570, 1099798, 1293880, 1571140, 2199596, 2749495, 3142280, 4399192, 5498990, 10997980, 21995960]

約数ペア:

[(1, 21995960), (2, 10997980), (4, 5498990), (5, 4399192), (7, 3142280), (8, 2749495), (10, 2199596), (14, 1571140), (17, 1293880), (20, 1099798), (28, 785570), (34, 646940), (35, 628456), (40, 549899), (56, 392785), (68, 323470), (70, 314228), (85, 258776), (119, 184840), (136, 161735), (140, 157114), (170, 129388), (238, 92420), (280, 78557), (340, 64694), (476, 46210), (595, 36968), (680, 32347), (952, 23105), (1190, 18484), (2380, 9242), (4621, 4760)]