21409448

素因数分解:

$2^3\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 41493600

約数和(自身を除く): 20084152

約数列:

[1, 2, 4, 8, 59, 67, 118, 134, 236, 268, 472, 536, 677, 1354, 2708, 3953, 5416, 7906, 15812, 31624, 39943, 45359, 79886, 90718, 159772, 181436, 319544, 362872, 2676181, 5352362, 10704724, 21409448]

約数ペア:

[(1, 21409448), (2, 10704724), (4, 5352362), (8, 2676181), (59, 362872), (67, 319544), (118, 181436), (134, 159772), (236, 90718), (268, 79886), (472, 45359), (536, 39943), (677, 31624), (1354, 15812), (2708, 7906), (3953, 5416)]