19777365

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1039}}^1$

素因数の和:1103

約数の個数: 40

約数和(自身を含む): 36241920

約数和(自身を除く): 16464555

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 405, 423, 705, 1039, 1269, 2115, 3117, 3807, 5195, 6345, 9351, 15585, 19035, 28053, 46755, 48833, 84159, 140265, 146499, 244165, 420795, 439497, 732495, 1318491, 2197485, 3955473, 6592455, 19777365]

約数ペア:

[(1, 19777365), (3, 6592455), (5, 3955473), (9, 2197485), (15, 1318491), (27, 732495), (45, 439497), (47, 420795), (81, 244165), (135, 146499), (141, 140265), (235, 84159), (405, 48833), (423, 46755), (705, 28053), (1039, 19035), (1269, 15585), (2115, 9351), (3117, 6345), (3807, 5195)]