20929735

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 27993600

約数和(自身を除く): 7063865

約数列:

[1, 5, 19, 29, 71, 95, 107, 145, 355, 535, 551, 1349, 2033, 2059, 2755, 3103, 6745, 7597, 10165, 10295, 15515, 37985, 39121, 58957, 144343, 195605, 220313, 294785, 721715, 1101565, 4185947, 20929735]

約数ペア:

[(1, 20929735), (5, 4185947), (19, 1101565), (29, 721715), (71, 294785), (95, 220313), (107, 195605), (145, 144343), (355, 58957), (535, 39121), (551, 37985), (1349, 15515), (2033, 10295), (2059, 10165), (2755, 7597), (3103, 6745)]