21018503

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 24871680

約数和(自身を除く): 3853177

約数列:

[1, 11, 19, 67, 79, 209, 361, 737, 869, 1273, 1501, 3971, 5293, 14003, 16511, 24187, 28519, 58223, 100567, 266057, 313709, 1106237, 1910773, 21018503]

約数ペア:

[(1, 21018503), (11, 1910773), (19, 1106237), (67, 313709), (79, 266057), (209, 100567), (361, 58223), (737, 28519), (869, 24187), (1273, 16511), (1501, 14003), (3971, 5293)]