21566710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 25711370

約数列:

[1, 2, 5, 10, 11, 17, 19, 22, 34, 38, 55, 85, 95, 110, 170, 187, 190, 209, 323, 374, 418, 607, 646, 935, 1045, 1214, 1615, 1870, 2090, 3035, 3230, 3553, 6070, 6677, 7106, 10319, 11533, 13354, 17765, 20638, 23066, 33385, 35530, 51595, 57665, 66770, 103190, 113509, 115330, 126863, 196061, 227018, 253726, 392122, 567545, 634315, 980305, 1135090, 1268630, 1960610, 2156671, 4313342, 10783355, 21566710]

約数ペア:

[(1, 21566710), (2, 10783355), (5, 4313342), (10, 2156671), (11, 1960610), (17, 1268630), (19, 1135090), (22, 980305), (34, 634315), (38, 567545), (55, 392122), (85, 253726), (95, 227018), (110, 196061), (170, 126863), (187, 115330), (190, 113509), (209, 103190), (323, 66770), (374, 57665), (418, 51595), (607, 35530), (646, 33385), (935, 23066), (1045, 20638), (1214, 17765), (1615, 13354), (1870, 11533), (2090, 10319), (3035, 7106), (3230, 6677), (3553, 6070)]