21554906110

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{419}}^1\times {\mathrm{541}}^1$

素因数の和:1261

約数の個数: 64

約数和(自身を含む): 40172086080

約数和(自身を除く): 18617179970

約数列:

[1, 2, 5, 10, 37, 74, 185, 257, 370, 419, 514, 541, 838, 1082, 1285, 2095, 2570, 2705, 4190, 5410, 9509, 15503, 19018, 20017, 31006, 40034, 47545, 77515, 95090, 100085, 107683, 139037, 155030, 200170, 215366, 226679, 278074, 453358, 538415, 695185, 1076830, 1133395, 1390370, 2266790, 3984271, 5144369, 7968542, 8387123, 10288738, 16774246, 19921355, 25721845, 39842710, 41935615, 51443690, 58256503, 83871230, 116513006, 291282515, 582565030, 2155490611, 4310981222, 10777453055, 21554906110]

約数ペア:

[(1, 21554906110), (2, 10777453055), (5, 4310981222), (10, 2155490611), (37, 582565030), (74, 291282515), (185, 116513006), (257, 83871230), (370, 58256503), (419, 51443690), (514, 41935615), (541, 39842710), (838, 25721845), (1082, 19921355), (1285, 16774246), (2095, 10288738), (2570, 8387123), (2705, 7968542), (4190, 5144369), (5410, 3984271), (9509, 2266790), (15503, 1390370), (19018, 1133395), (20017, 1076830), (31006, 695185), (40034, 538415), (47545, 453358), (77515, 278074), (95090, 226679), (100085, 215366), (107683, 200170), (139037, 155030)]