20163457251

素因数分解:

$3^4\times 7^1\times {\mathrm{131}}^1\times {\mathrm{271463}}^1$

素因数の和:271613

約数の個数: 40

約数和(自身を含む): 34686584064

約数和(自身を除く): 14523126813

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 131, 189, 393, 567, 917, 1179, 2751, 3537, 8253, 10611, 24759, 74277, 271463, 814389, 1900241, 2443167, 5700723, 7329501, 17102169, 21988503, 35561653, 51306507, 106684959, 153919521, 248931571, 320054877, 746794713, 960164631, 2240384139, 2880493893, 6721152417, 20163457251]

約数ペア:

[(1, 20163457251), (3, 6721152417), (7, 2880493893), (9, 2240384139), (21, 960164631), (27, 746794713), (63, 320054877), (81, 248931571), (131, 153919521), (189, 106684959), (393, 51306507), (567, 35561653), (917, 21988503), (1179, 17102169), (2751, 7329501), (3537, 5700723), (8253, 2443167), (10611, 1900241), (24759, 814389), (74277, 271463)]