21031396029

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{273857}}^1$

素因数の和:273946

約数の個数: 48

約数和(自身を含む): 36911676672

約数和(自身を除く): 15880280643

約数列:

[1, 3, 7, 9, 21, 23, 53, 63, 69, 159, 161, 207, 371, 477, 483, 1113, 1219, 1449, 3339, 3657, 8533, 10971, 25599, 76797, 273857, 821571, 1916999, 2464713, 5750997, 6298711, 14514421, 17252991, 18896133, 43543263, 44090977, 56688399, 101600947, 130629789, 132272931, 304802841, 333831683, 396818793, 914408523, 1001495049, 2336821781, 3004485147, 7010465343, 21031396029]

約数ペア:

[(1, 21031396029), (3, 7010465343), (7, 3004485147), (9, 2336821781), (21, 1001495049), (23, 914408523), (53, 396818793), (63, 333831683), (69, 304802841), (159, 132272931), (161, 130629789), (207, 101600947), (371, 56688399), (477, 44090977), (483, 43543263), (1113, 18896133), (1219, 17252991), (1449, 14514421), (3339, 6298711), (3657, 5750997), (8533, 2464713), (10971, 1916999), (25599, 821571), (76797, 273857)]