21331310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2131}}^1$

素因数の和:2169

約数の個数: 64

約数和(自身を含む): 51577344

約数和(自身を除く): 30246034

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 26, 35, 55, 65, 70, 77, 91, 110, 130, 143, 154, 182, 286, 385, 455, 715, 770, 910, 1001, 1430, 2002, 2131, 4262, 5005, 10010, 10655, 14917, 21310, 23441, 27703, 29834, 46882, 55406, 74585, 117205, 138515, 149170, 164087, 193921, 234410, 277030, 304733, 328174, 387842, 609466, 820435, 969605, 1523665, 1640870, 1939210, 2133131, 3047330, 4266262, 10665655, 21331310]

約数ペア:

[(1, 21331310), (2, 10665655), (5, 4266262), (7, 3047330), (10, 2133131), (11, 1939210), (13, 1640870), (14, 1523665), (22, 969605), (26, 820435), (35, 609466), (55, 387842), (65, 328174), (70, 304733), (77, 277030), (91, 234410), (110, 193921), (130, 164087), (143, 149170), (154, 138515), (182, 117205), (286, 74585), (385, 55406), (455, 46882), (715, 29834), (770, 27703), (910, 23441), (1001, 21310), (1430, 14917), (2002, 10655), (2131, 10010), (4262, 5005)]