19808542

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:460

約数の個数: 32

約数和(自身を含む): 33516000

約数和(自身を除く): 13707458

約数列:

[1, 2, 13, 26, 37, 59, 74, 118, 349, 481, 698, 767, 962, 1534, 2183, 4366, 4537, 9074, 12913, 20591, 25826, 28379, 41182, 56758, 167869, 267683, 335738, 535366, 761867, 1523734, 9904271, 19808542]

約数ペア:

[(1, 19808542), (2, 9904271), (13, 1523734), (26, 761867), (37, 535366), (59, 335738), (74, 267683), (118, 167869), (349, 56758), (481, 41182), (698, 28379), (767, 25826), (962, 20591), (1534, 12913), (2183, 9074), (4366, 4537)]