21386844

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9739}}^1$

素因数の和:9810

約数の個数: 36

約数和(自身を含む): 54953080

約数和(自身を除く): 33566236

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9739, 19478, 29217, 38956, 58434, 87651, 116868, 175302, 350604, 594079, 1188158, 1782237, 2376316, 3564474, 5346711, 7128948, 10693422, 21386844]

約数ペア:

[(1, 21386844), (2, 10693422), (3, 7128948), (4, 5346711), (6, 3564474), (9, 2376316), (12, 1782237), (18, 1188158), (36, 594079), (61, 350604), (122, 175302), (183, 116868), (244, 87651), (366, 58434), (549, 38956), (732, 29217), (1098, 19478), (2196, 9739)]