18956924

素因数分解:

$2^2\times 7^3\times {\mathrm{41}}^1\times {\mathrm{337}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 39748800

約数和(自身を除く): 20791876

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 337, 343, 574, 674, 686, 1148, 1348, 1372, 2009, 2359, 4018, 4718, 8036, 9436, 13817, 14063, 16513, 27634, 28126, 33026, 55268, 56252, 66052, 96719, 115591, 193438, 231182, 386876, 462364, 677033, 1354066, 2708132, 4739231, 9478462, 18956924]

約数ペア:

[(1, 18956924), (2, 9478462), (4, 4739231), (7, 2708132), (14, 1354066), (28, 677033), (41, 462364), (49, 386876), (82, 231182), (98, 193438), (164, 115591), (196, 96719), (287, 66052), (337, 56252), (343, 55268), (574, 33026), (674, 28126), (686, 27634), (1148, 16513), (1348, 14063), (1372, 13817), (2009, 9436), (2359, 8036), (4018, 4718)]