21900424

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{449}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 29507576

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 67, 91, 104, 134, 182, 268, 364, 449, 469, 536, 728, 871, 898, 938, 1742, 1796, 1876, 3143, 3484, 3592, 3752, 5837, 6097, 6286, 6968, 11674, 12194, 12572, 23348, 24388, 25144, 30083, 40859, 46696, 48776, 60166, 81718, 120332, 163436, 210581, 240664, 326872, 391079, 421162, 782158, 842324, 1564316, 1684648, 2737553, 3128632, 5475106, 10950212, 21900424]

約数ペア:

[(1, 21900424), (2, 10950212), (4, 5475106), (7, 3128632), (8, 2737553), (13, 1684648), (14, 1564316), (26, 842324), (28, 782158), (52, 421162), (56, 391079), (67, 326872), (91, 240664), (104, 210581), (134, 163436), (182, 120332), (268, 81718), (364, 60166), (449, 48776), (469, 46696), (536, 40859), (728, 30083), (871, 25144), (898, 24388), (938, 23348), (1742, 12572), (1796, 12194), (1876, 11674), (3143, 6968), (3484, 6286), (3592, 6097), (3752, 5837)]