21443248

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70537}}^1$

素因数の和:70564

約数の個数: 20

約数和(自身を含む): 43733560

約数和(自身を除く): 22290312

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70537, 141074, 282148, 564296, 1128592, 1340203, 2680406, 5360812, 10721624, 21443248]

約数ペア:

[(1, 21443248), (2, 10721624), (4, 5360812), (8, 2680406), (16, 1340203), (19, 1128592), (38, 564296), (76, 282148), (152, 141074), (304, 70537)]