18652218

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 43206912

約数和(自身を除く): 24554694

約数列:

[1, 2, 3, 6, 13, 23, 26, 37, 39, 46, 69, 74, 78, 111, 138, 222, 281, 299, 481, 562, 598, 843, 851, 897, 962, 1443, 1686, 1702, 1794, 2553, 2886, 3653, 5106, 6463, 7306, 10397, 10959, 11063, 12926, 19389, 20794, 21918, 22126, 31191, 33189, 38778, 62382, 66378, 84019, 135161, 168038, 239131, 252057, 270322, 405483, 478262, 504114, 717393, 810966, 1434786, 3108703, 6217406, 9326109, 18652218]

約数ペア:

[(1, 18652218), (2, 9326109), (3, 6217406), (6, 3108703), (13, 1434786), (23, 810966), (26, 717393), (37, 504114), (39, 478262), (46, 405483), (69, 270322), (74, 252057), (78, 239131), (111, 168038), (138, 135161), (222, 84019), (281, 66378), (299, 62382), (481, 38778), (562, 33189), (598, 31191), (843, 22126), (851, 21918), (897, 20794), (962, 19389), (1443, 12926), (1686, 11063), (1702, 10959), (1794, 10397), (2553, 7306), (2886, 6463), (3653, 5106)]