21457238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 36426240

約数和(自身を除く): 14969002

約数列:

[1, 2, 11, 22, 59, 61, 118, 122, 271, 542, 649, 671, 1298, 1342, 2981, 3599, 5962, 7198, 15989, 16531, 31978, 33062, 39589, 79178, 175879, 181841, 351758, 363682, 975329, 1950658, 10728619, 21457238]

約数ペア:

[(1, 21457238), (2, 10728619), (11, 1950658), (22, 975329), (59, 363682), (61, 351758), (118, 181841), (122, 175879), (271, 79178), (542, 39589), (649, 33062), (671, 31978), (1298, 16531), (1342, 15989), (2981, 7198), (3599, 5962)]