20921928

素因数分解:

$2^3\times 3^1\times {\mathrm{173}}^1\times {\mathrm{5039}}^1$

素因数の和:5221

約数の個数: 32

約数和(自身を含む): 52617600

約数和(自身を除く): 31695672

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 173, 346, 519, 692, 1038, 1384, 2076, 4152, 5039, 10078, 15117, 20156, 30234, 40312, 60468, 120936, 871747, 1743494, 2615241, 3486988, 5230482, 6973976, 10460964, 20921928]

約数ペア:

[(1, 20921928), (2, 10460964), (3, 6973976), (4, 5230482), (6, 3486988), (8, 2615241), (12, 1743494), (24, 871747), (173, 120936), (346, 60468), (519, 40312), (692, 30234), (1038, 20156), (1384, 15117), (2076, 10078), (4152, 5039)]