21070540

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{6977}}^1$

素因数の和:7137

約数の個数: 24

約数和(自身を含む): 44547552

約数和(自身を除く): 23477012

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 6977, 13954, 27908, 34885, 69770, 139540, 1053527, 2107054, 4214108, 5267635, 10535270, 21070540]

約数ペア:

[(1, 21070540), (2, 10535270), (4, 5267635), (5, 4214108), (10, 2107054), (20, 1053527), (151, 139540), (302, 69770), (604, 34885), (755, 27908), (1510, 13954), (3020, 6977)]