21357018

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{653}}^1$

素因数の和:763

約数の個数: 48

約数和(自身を含む): 48971520

約数和(自身を除く): 27614502

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 79, 138, 158, 207, 237, 414, 474, 653, 711, 1306, 1422, 1817, 1959, 3634, 3918, 5451, 5877, 10902, 11754, 15019, 16353, 30038, 32706, 45057, 51587, 90114, 103174, 135171, 154761, 270342, 309522, 464283, 928566, 1186501, 2373002, 3559503, 7119006, 10678509, 21357018]

約数ペア:

[(1, 21357018), (2, 10678509), (3, 7119006), (6, 3559503), (9, 2373002), (18, 1186501), (23, 928566), (46, 464283), (69, 309522), (79, 270342), (138, 154761), (158, 135171), (207, 103174), (237, 90114), (414, 51587), (474, 45057), (653, 32706), (711, 30038), (1306, 16353), (1422, 15019), (1817, 11754), (1959, 10902), (3634, 5877), (3918, 5451)]