20859663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 34235136

約数和(自身を除く): 13375473

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 103, 187, 209, 309, 323, 361, 561, 627, 969, 1083, 1133, 1751, 1957, 3399, 3553, 3971, 5253, 5871, 6137, 10659, 11913, 18411, 19261, 21527, 33269, 37183, 57783, 64581, 67507, 99807, 111549, 202521, 365959, 409013, 632111, 1097877, 1227039, 1896333, 6953221, 20859663]

約数ペア:

[(1, 20859663), (3, 6953221), (11, 1896333), (17, 1227039), (19, 1097877), (33, 632111), (51, 409013), (57, 365959), (103, 202521), (187, 111549), (209, 99807), (309, 67507), (323, 64581), (361, 57783), (561, 37183), (627, 33269), (969, 21527), (1083, 19261), (1133, 18411), (1751, 11913), (1957, 10659), (3399, 6137), (3553, 5871), (3971, 5253)]