18880218

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5167}}^1$

素因数の和:5211

約数の個数: 48

約数和(自身を含む): 48372480

約数和(自身を除く): 29492262

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 522, 609, 1218, 1827, 3654, 5167, 10334, 15501, 31002, 36169, 46503, 72338, 93006, 108507, 149843, 217014, 299686, 325521, 449529, 651042, 899058, 1048901, 1348587, 2097802, 2697174, 3146703, 6293406, 9440109, 18880218]

約数ペア:

[(1, 18880218), (2, 9440109), (3, 6293406), (6, 3146703), (7, 2697174), (9, 2097802), (14, 1348587), (18, 1048901), (21, 899058), (29, 651042), (42, 449529), (58, 325521), (63, 299686), (87, 217014), (126, 149843), (174, 108507), (203, 93006), (261, 72338), (406, 46503), (522, 36169), (609, 31002), (1218, 15501), (1827, 10334), (3654, 5167)]