20218014921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1\times {\mathrm{3709}}^1$

素因数の和:3910

約数の個数: 64

約数和(自身を含む): 31114137600

約数和(自身を除く): 10896122679

約数列:

[1, 3, 13, 23, 39, 59, 69, 103, 177, 299, 309, 767, 897, 1339, 1357, 2301, 2369, 3709, 4017, 4071, 6077, 7107, 11127, 17641, 18231, 30797, 48217, 52923, 79001, 85307, 92391, 139771, 144651, 218831, 237003, 255921, 382027, 419313, 656493, 1108991, 1146081, 1817023, 2844803, 3326973, 4966351, 5033113, 5451069, 8534409, 8786621, 14899053, 15099339, 22539593, 26359863, 65430469, 67618779, 114226073, 196291407, 293014709, 342678219, 518410639, 879044127, 1555231917, 6739338307, 20218014921]

約数ペア:

[(1, 20218014921), (3, 6739338307), (13, 1555231917), (23, 879044127), (39, 518410639), (59, 342678219), (69, 293014709), (103, 196291407), (177, 114226073), (299, 67618779), (309, 65430469), (767, 26359863), (897, 22539593), (1339, 15099339), (1357, 14899053), (2301, 8786621), (2369, 8534409), (3709, 5451069), (4017, 5033113), (4071, 4966351), (6077, 3326973), (7107, 2844803), (11127, 1817023), (17641, 1146081), (18231, 1108991), (30797, 656493), (48217, 419313), (52923, 382027), (79001, 255921), (85307, 237003), (92391, 218831), (139771, 144651)]