19539416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2111}}^1$

素因数の和:2219

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 20377384

約数列:

[1, 2, 4, 8, 13, 26, 52, 89, 104, 178, 356, 712, 1157, 2111, 2314, 4222, 4628, 8444, 9256, 16888, 27443, 54886, 109772, 187879, 219544, 375758, 751516, 1503032, 2442427, 4884854, 9769708, 19539416]

約数ペア:

[(1, 19539416), (2, 9769708), (4, 4884854), (8, 2442427), (13, 1503032), (26, 751516), (52, 375758), (89, 219544), (104, 187879), (178, 109772), (356, 54886), (712, 27443), (1157, 16888), (2111, 9256), (2314, 8444), (4222, 4628)]