21818574

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{487}}^1$

素因数の和:645

約数の個数: 48

約数和(自身を含む): 50244480

約数和(自身を除く): 28425906

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 131, 171, 262, 342, 393, 487, 786, 974, 1179, 1461, 2358, 2489, 2922, 4383, 4978, 7467, 8766, 9253, 14934, 18506, 22401, 27759, 44802, 55518, 63797, 83277, 127594, 166554, 191391, 382782, 574173, 1148346, 1212143, 2424286, 3636429, 7272858, 10909287, 21818574]

約数ペア:

[(1, 21818574), (2, 10909287), (3, 7272858), (6, 3636429), (9, 2424286), (18, 1212143), (19, 1148346), (38, 574173), (57, 382782), (114, 191391), (131, 166554), (171, 127594), (262, 83277), (342, 63797), (393, 55518), (487, 44802), (786, 27759), (974, 22401), (1179, 18506), (1461, 14934), (2358, 9253), (2489, 8766), (2922, 7467), (4383, 4978)]