221381804

素因数分解:

$2^2\times 7^5\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 72

約数和(自身を含む): 469415520

約数和(自身を除く): 248033716

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 89, 98, 148, 178, 196, 259, 343, 356, 518, 623, 686, 1036, 1246, 1372, 1813, 2401, 2492, 3293, 3626, 4361, 4802, 6586, 7252, 8722, 9604, 12691, 13172, 16807, 17444, 23051, 25382, 30527, 33614, 46102, 50764, 61054, 67228, 88837, 92204, 122108, 161357, 177674, 213689, 322714, 355348, 427378, 621859, 645428, 854756, 1129499, 1243718, 1495823, 2258998, 2487436, 2991646, 4517996, 5983292, 7906493, 15812986, 31625972, 55345451, 110690902, 221381804]

約数ペア:

[(1, 221381804), (2, 110690902), (4, 55345451), (7, 31625972), (14, 15812986), (28, 7906493), (37, 5983292), (49, 4517996), (74, 2991646), (89, 2487436), (98, 2258998), (148, 1495823), (178, 1243718), (196, 1129499), (259, 854756), (343, 645428), (356, 621859), (518, 427378), (623, 355348), (686, 322714), (1036, 213689), (1246, 177674), (1372, 161357), (1813, 122108), (2401, 92204), (2492, 88837), (3293, 67228), (3626, 61054), (4361, 50764), (4802, 46102), (6586, 33614), (7252, 30527), (8722, 25382), (9604, 23051), (12691, 17444), (13172, 16807)]