21041734

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 38071296

約数和(自身を除く): 17029562

約数列:

[1, 2, 7, 14, 23, 46, 101, 161, 202, 322, 647, 707, 1294, 1414, 2323, 4529, 4646, 9058, 14881, 16261, 29762, 32522, 65347, 104167, 130694, 208334, 457429, 914858, 1502981, 3005962, 10520867, 21041734]

約数ペア:

[(1, 21041734), (2, 10520867), (7, 3005962), (14, 1502981), (23, 914858), (46, 457429), (101, 208334), (161, 130694), (202, 104167), (322, 65347), (647, 32522), (707, 29762), (1294, 16261), (1414, 14881), (2323, 9058), (4529, 4646)]