20197268

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55487}}^1$

素因数の和:55511

約数の個数: 24

約数和(自身を含む): 43502592

約数和(自身を除く): 23305324

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 55487, 110974, 221948, 388409, 721331, 776818, 1442662, 1553636, 2885324, 5049317, 10098634, 20197268]

約数ペア:

[(1, 20197268), (2, 10098634), (4, 5049317), (7, 2885324), (13, 1553636), (14, 1442662), (26, 776818), (28, 721331), (52, 388409), (91, 221948), (182, 110974), (364, 55487)]