21371868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{84809}}^1$

素因数の和:84826

約数の個数: 36

約数和(自身を含む): 61741680

約数和(自身を除く): 40369812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 84809, 169618, 254427, 339236, 508854, 593663, 763281, 1017708, 1187326, 1526562, 1780989, 2374652, 3053124, 3561978, 5342967, 7123956, 10685934, 21371868]

約数ペア:

[(1, 21371868), (2, 10685934), (3, 7123956), (4, 5342967), (6, 3561978), (7, 3053124), (9, 2374652), (12, 1780989), (14, 1526562), (18, 1187326), (21, 1017708), (28, 763281), (36, 593663), (42, 508854), (63, 339236), (84, 254427), (126, 169618), (252, 84809)]