21000992152

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^2\times {\mathrm{70373}}^1$

素因数の和:70532

約数の個数: 48

約数和(自身を含む): 45627686640

約数和(自身を除く): 24626694488

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 5329, 10658, 21316, 37303, 42632, 70373, 74606, 140746, 149212, 281492, 298424, 492611, 562984, 985222, 1970444, 3940888, 5137229, 10274458, 20548916, 35960603, 41097832, 71921206, 143842412, 287684824, 375017717, 750035434, 1500070868, 2625124019, 3000141736, 5250248038, 10500496076, 21000992152]

約数ペア:

[(1, 21000992152), (2, 10500496076), (4, 5250248038), (7, 3000141736), (8, 2625124019), (14, 1500070868), (28, 750035434), (56, 375017717), (73, 287684824), (146, 143842412), (292, 71921206), (511, 41097832), (584, 35960603), (1022, 20548916), (2044, 10274458), (4088, 5137229), (5329, 3940888), (10658, 1970444), (21316, 985222), (37303, 562984), (42632, 492611), (70373, 298424), (74606, 281492), (140746, 149212)]