20152821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:337

約数の個数: 32

約数和(自身を含む): 30392320

約数和(自身を除く): 10239499

約数列:

[1, 3, 13, 31, 39, 79, 93, 211, 237, 403, 633, 1027, 1209, 2449, 2743, 3081, 6541, 7347, 8229, 16669, 19623, 31837, 50007, 85033, 95511, 216697, 255099, 516739, 650091, 1550217, 6717607, 20152821]

約数ペア:

[(1, 20152821), (3, 6717607), (13, 1550217), (31, 650091), (39, 516739), (79, 255099), (93, 216697), (211, 95511), (237, 85033), (403, 50007), (633, 31837), (1027, 19623), (1209, 16669), (2449, 8229), (2743, 7347), (3081, 6541)]