21279392

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1129}}^1$

素因数の和:1189

約数の個数: 48

約数和(自身を含む): 45561600

約数和(自身を除く): 24282208

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 124, 152, 248, 304, 496, 589, 608, 992, 1129, 1178, 2258, 2356, 4516, 4712, 9032, 9424, 18064, 18848, 21451, 34999, 36128, 42902, 69998, 85804, 139996, 171608, 279992, 343216, 559984, 664981, 686432, 1119968, 1329962, 2659924, 5319848, 10639696, 21279392]

約数ペア:

[(1, 21279392), (2, 10639696), (4, 5319848), (8, 2659924), (16, 1329962), (19, 1119968), (31, 686432), (32, 664981), (38, 559984), (62, 343216), (76, 279992), (124, 171608), (152, 139996), (248, 85804), (304, 69998), (496, 42902), (589, 36128), (608, 34999), (992, 21451), (1129, 18848), (1178, 18064), (2258, 9424), (2356, 9032), (4516, 4712)]