20571668

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9649}}^1$

素因数の和:9707

約数の個数: 24

約数和(自身を含む): 39719400

約数和(自身を除く): 19147732

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9649, 19298, 38596, 125437, 250874, 395609, 501748, 791218, 1582436, 5142917, 10285834, 20571668]

約数ペア:

[(1, 20571668), (2, 10285834), (4, 5142917), (13, 1582436), (26, 791218), (41, 501748), (52, 395609), (82, 250874), (164, 125437), (533, 38596), (1066, 19298), (2132, 9649)]