18966021697

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{37}}^1\times {\mathrm{138427}}^1$

素因数の和:138517

約数の個数: 24

約数和(自身を含む): 23271407936

約数和(自身を除く): 4305386239

約数列:

[1, 7, 23, 37, 161, 259, 529, 851, 3703, 5957, 19573, 137011, 138427, 968989, 3183821, 5121799, 22286747, 35852593, 73227883, 117801377, 512595181, 824609639, 2709431671, 18966021697]

約数ペア:

[(1, 18966021697), (7, 2709431671), (23, 824609639), (37, 512595181), (161, 117801377), (259, 73227883), (529, 35852593), (851, 22286747), (3703, 5121799), (5957, 3183821), (19573, 968989), (137011, 138427)]