18891108

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{9901}}^1$

素因数の和:9964

約数の個数: 36

約数和(自身を含む): 48658428

約数和(自身を除く): 29767320

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908, 9901, 19802, 29703, 39604, 59406, 89109, 118812, 178218, 356436, 524753, 1049506, 1574259, 2099012, 3148518, 4722777, 6297036, 9445554, 18891108]

約数ペア:

[(1, 18891108), (2, 9445554), (3, 6297036), (4, 4722777), (6, 3148518), (9, 2099012), (12, 1574259), (18, 1049506), (36, 524753), (53, 356436), (106, 178218), (159, 118812), (212, 89109), (318, 59406), (477, 39604), (636, 29703), (954, 19802), (1908, 9901)]