20378862

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 50779872

約数和(自身を除く): 30401010

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 197, 394, 591, 821, 1182, 1379, 1642, 1773, 2463, 2758, 3546, 4137, 4926, 5747, 7389, 8274, 11494, 12411, 14778, 17241, 24822, 34482, 51723, 103446, 161737, 323474, 485211, 970422, 1132159, 1455633, 2264318, 2911266, 3396477, 6792954, 10189431, 20378862]

約数ペア:

[(1, 20378862), (2, 10189431), (3, 6792954), (6, 3396477), (7, 2911266), (9, 2264318), (14, 1455633), (18, 1132159), (21, 970422), (42, 485211), (63, 323474), (126, 161737), (197, 103446), (394, 51723), (591, 34482), (821, 24822), (1182, 17241), (1379, 14778), (1642, 12411), (1773, 11494), (2463, 8274), (2758, 7389), (3546, 5747), (4137, 4926)]