21812684

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7757}}^1$

素因数の和:7817

約数の個数: 24

約数和(自身を含む): 41272560

約数和(自身を除く): 19459876

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7757, 15514, 31028, 147383, 287009, 294766, 574018, 589532, 1148036, 5453171, 10906342, 21812684]

約数ペア:

[(1, 21812684), (2, 10906342), (4, 5453171), (19, 1148036), (37, 589532), (38, 574018), (74, 294766), (76, 287009), (148, 147383), (703, 31028), (1406, 15514), (2812, 7757)]