21789468

素因数分解:

$2^2\times 3^2\times {\mathrm{379}}^1\times {\mathrm{1597}}^1$

素因数の和:1986

約数の個数: 36

約数和(自身を含む): 55258840

約数和(自身を除く): 33469372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 379, 758, 1137, 1516, 1597, 2274, 3194, 3411, 4548, 4791, 6388, 6822, 9582, 13644, 14373, 19164, 28746, 57492, 605263, 1210526, 1815789, 2421052, 3631578, 5447367, 7263156, 10894734, 21789468]

約数ペア:

[(1, 21789468), (2, 10894734), (3, 7263156), (4, 5447367), (6, 3631578), (9, 2421052), (12, 1815789), (18, 1210526), (36, 605263), (379, 57492), (758, 28746), (1137, 19164), (1516, 14373), (1597, 13644), (2274, 9582), (3194, 6822), (3411, 6388), (4548, 4791)]