220126473

素因数分解:

$3^2\times 7^2\times {\mathrm{617}}^1\times {\mathrm{809}}^1$

素因数の和:1446

約数の個数: 36

約数和(自身を含む): 370929780

約数和(自身を除く): 150803307

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 617, 809, 1851, 2427, 4319, 5553, 5663, 7281, 12957, 16989, 30233, 38871, 39641, 50967, 90699, 118923, 272097, 356769, 499153, 1497459, 3494071, 4492377, 10482213, 24458497, 31446639, 73375491, 220126473]

約数ペア:

[(1, 220126473), (3, 73375491), (7, 31446639), (9, 24458497), (21, 10482213), (49, 4492377), (63, 3494071), (147, 1497459), (441, 499153), (617, 356769), (809, 272097), (1851, 118923), (2427, 90699), (4319, 50967), (5553, 39641), (5663, 38871), (7281, 30233), (12957, 16989)]