21977190

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3539}}^1$

素因数の和:3578

約数の個数: 64

約数和(自身を含む): 61171200

約数和(自身を除く): 39194010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 90, 115, 135, 138, 207, 230, 270, 345, 414, 621, 690, 1035, 1242, 2070, 3105, 3539, 6210, 7078, 10617, 17695, 21234, 31851, 35390, 53085, 63702, 81397, 95553, 106170, 159255, 162794, 191106, 244191, 318510, 406985, 477765, 488382, 732573, 813970, 955530, 1220955, 1465146, 2197719, 2441910, 3662865, 4395438, 7325730, 10988595, 21977190]

約数ペア:

[(1, 21977190), (2, 10988595), (3, 7325730), (5, 4395438), (6, 3662865), (9, 2441910), (10, 2197719), (15, 1465146), (18, 1220955), (23, 955530), (27, 813970), (30, 732573), (45, 488382), (46, 477765), (54, 406985), (69, 318510), (90, 244191), (115, 191106), (135, 162794), (138, 159255), (207, 106170), (230, 95553), (270, 81397), (345, 63702), (414, 53085), (621, 35390), (690, 31851), (1035, 21234), (1242, 17695), (2070, 10617), (3105, 7078), (3539, 6210)]