20508566

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:336

約数の個数: 32

約数和(自身を含む): 34351968

約数和(自身を除く): 13843402

約数列:

[1, 2, 13, 26, 61, 67, 122, 134, 193, 386, 793, 871, 1586, 1742, 2509, 4087, 5018, 8174, 11773, 12931, 23546, 25862, 53131, 106262, 153049, 168103, 306098, 336206, 788791, 1577582, 10254283, 20508566]

約数ペア:

[(1, 20508566), (2, 10254283), (13, 1577582), (26, 788791), (61, 336206), (67, 306098), (122, 168103), (134, 153049), (193, 106262), (386, 53131), (793, 25862), (871, 23546), (1586, 12931), (1742, 11773), (2509, 8174), (4087, 5018)]