20135223

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 32288256

約数和(自身を除く): 12153033

約数列:

[1, 3, 9, 27, 41, 43, 47, 81, 123, 129, 141, 243, 369, 387, 423, 1107, 1161, 1269, 1763, 1927, 2021, 3321, 3483, 3807, 5289, 5781, 6063, 9963, 10449, 11421, 15867, 17343, 18189, 47601, 52029, 54567, 82861, 142803, 156087, 163701, 248583, 428409, 468261, 491103, 745749, 2237247, 6711741, 20135223]

約数ペア:

[(1, 20135223), (3, 6711741), (9, 2237247), (27, 745749), (41, 491103), (43, 468261), (47, 428409), (81, 248583), (123, 163701), (129, 156087), (141, 142803), (243, 82861), (369, 54567), (387, 52029), (423, 47601), (1107, 18189), (1161, 17343), (1269, 15867), (1763, 11421), (1927, 10449), (2021, 9963), (3321, 6063), (3483, 5781), (3807, 5289)]