1981291438

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{91837}}^1$

素因数の和:91936

約数の個数: 32

約数和(自身を含む): 3597110784

約数和(自身を除く): 1615819346

約数列:

[1, 2, 7, 14, 23, 46, 67, 134, 161, 322, 469, 938, 1541, 3082, 10787, 21574, 91837, 183674, 642859, 1285718, 2112251, 4224502, 6153079, 12306158, 14785757, 29571514, 43071553, 86143106, 141520817, 283041634, 990645719, 1981291438]

約数ペア:

[(1, 1981291438), (2, 990645719), (7, 283041634), (14, 141520817), (23, 86143106), (46, 43071553), (67, 29571514), (134, 14785757), (161, 12306158), (322, 6153079), (469, 4224502), (938, 2112251), (1541, 1285718), (3082, 642859), (10787, 183674), (21574, 91837)]