21565836

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{769}}^1$

素因数の和:839

約数の個数: 72

約数和(自身を含む): 58858800

約数和(自身を除く): 37292964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 41, 57, 76, 82, 114, 123, 164, 171, 228, 246, 342, 369, 492, 684, 738, 769, 779, 1476, 1538, 1558, 2307, 2337, 3076, 3116, 4614, 4674, 6921, 7011, 9228, 9348, 13842, 14022, 14611, 27684, 28044, 29222, 31529, 43833, 58444, 63058, 87666, 94587, 126116, 131499, 175332, 189174, 262998, 283761, 378348, 525996, 567522, 599051, 1135044, 1198102, 1797153, 2396204, 3594306, 5391459, 7188612, 10782918, 21565836]

約数ペア:

[(1, 21565836), (2, 10782918), (3, 7188612), (4, 5391459), (6, 3594306), (9, 2396204), (12, 1797153), (18, 1198102), (19, 1135044), (36, 599051), (38, 567522), (41, 525996), (57, 378348), (76, 283761), (82, 262998), (114, 189174), (123, 175332), (164, 131499), (171, 126116), (228, 94587), (246, 87666), (342, 63058), (369, 58444), (492, 43833), (684, 31529), (738, 29222), (769, 28044), (779, 27684), (1476, 14611), (1538, 14022), (1558, 13842), (2307, 9348), (2337, 9228), (3076, 7011), (3116, 6921), (4614, 4674)]