20718594

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2393}}^1$

素因数の和:2451

約数の個数: 48

約数和(自身を含む): 49670712

約数和(自身を除く): 28952118

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 74, 78, 111, 117, 222, 234, 333, 481, 666, 962, 1443, 2393, 2886, 4329, 4786, 7179, 8658, 14358, 21537, 31109, 43074, 62218, 88541, 93327, 177082, 186654, 265623, 279981, 531246, 559962, 796869, 1151033, 1593738, 2302066, 3453099, 6906198, 10359297, 20718594]

約数ペア:

[(1, 20718594), (2, 10359297), (3, 6906198), (6, 3453099), (9, 2302066), (13, 1593738), (18, 1151033), (26, 796869), (37, 559962), (39, 531246), (74, 279981), (78, 265623), (111, 186654), (117, 177082), (222, 93327), (234, 88541), (333, 62218), (481, 43074), (666, 31109), (962, 21537), (1443, 14358), (2393, 8658), (2886, 7179), (4329, 4786)]