19776285

素因数分解:

$3^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{557}}^1$

素因数の和:834

約数の個数: 32

約数和(自身を含む): 35354880

約数和(自身を除く): 15578595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 263, 557, 789, 1315, 1671, 2367, 2785, 3945, 5013, 7101, 8355, 11835, 15039, 25065, 35505, 75195, 146491, 439473, 732455, 1318419, 2197365, 3955257, 6592095, 19776285]

約数ペア:

[(1, 19776285), (3, 6592095), (5, 3955257), (9, 2197365), (15, 1318419), (27, 732455), (45, 439473), (135, 146491), (263, 75195), (557, 35505), (789, 25065), (1315, 15039), (1671, 11835), (2367, 8355), (2785, 7101), (3945, 5013)]