21831836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{1163}}^1$

素因数の和:1218

約数の個数: 36

約数和(自身を含む): 43461432

約数和(自身を除く): 21629596

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 361, 494, 722, 988, 1163, 1444, 2326, 4652, 4693, 9386, 15119, 18772, 22097, 30238, 44194, 60476, 88388, 287261, 419843, 574522, 839686, 1149044, 1679372, 5457959, 10915918, 21831836]

約数ペア:

[(1, 21831836), (2, 10915918), (4, 5457959), (13, 1679372), (19, 1149044), (26, 839686), (38, 574522), (52, 419843), (76, 287261), (247, 88388), (361, 60476), (494, 44194), (722, 30238), (988, 22097), (1163, 18772), (1444, 15119), (2326, 9386), (4652, 4693)]