19765264

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:343

約数の個数: 40

約数和(自身を含む): 39426048

約数和(自身を除く): 19660784

約数列:

[1, 2, 4, 8, 16, 71, 127, 137, 142, 254, 274, 284, 508, 548, 568, 1016, 1096, 1136, 2032, 2192, 9017, 9727, 17399, 18034, 19454, 34798, 36068, 38908, 69596, 72136, 77816, 139192, 144272, 155632, 278384, 1235329, 2470658, 4941316, 9882632, 19765264]

約数ペア:

[(1, 19765264), (2, 9882632), (4, 4941316), (8, 2470658), (16, 1235329), (71, 278384), (127, 155632), (137, 144272), (142, 139192), (254, 77816), (274, 72136), (284, 69596), (508, 38908), (548, 36068), (568, 34798), (1016, 19454), (1096, 18034), (1136, 17399), (2032, 9727), (2192, 9017)]