19473831

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 31416000

約数和(自身を除く): 11942169

約数列:

[1, 3, 9, 13, 27, 39, 109, 117, 327, 351, 509, 981, 1417, 1527, 2943, 4251, 4581, 6617, 12753, 13743, 19851, 38259, 55481, 59553, 166443, 178659, 499329, 721253, 1497987, 2163759, 6491277, 19473831]

約数ペア:

[(1, 19473831), (3, 6491277), (9, 2163759), (13, 1497987), (27, 721253), (39, 499329), (109, 178659), (117, 166443), (327, 59553), (351, 55481), (509, 38259), (981, 19851), (1417, 13743), (1527, 12753), (2943, 6617), (4251, 4581)]