20756216

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1831}}^1$

素因数の和:1959

約数の個数: 32

約数和(自身を含む): 42319200

約数和(自身を除く): 21562984

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 109, 218, 436, 872, 1417, 1831, 2834, 3662, 5668, 7324, 11336, 14648, 23803, 47606, 95212, 190424, 199579, 399158, 798316, 1596632, 2594527, 5189054, 10378108, 20756216]

約数ペア:

[(1, 20756216), (2, 10378108), (4, 5189054), (8, 2594527), (13, 1596632), (26, 798316), (52, 399158), (104, 199579), (109, 190424), (218, 95212), (436, 47606), (872, 23803), (1417, 14648), (1831, 11336), (2834, 7324), (3662, 5668)]