21877860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2237}}^1$

素因数の和:2412

約数の個数: 48

約数和(自身を含む): 61661376

約数和(自身を除く): 39783516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 652, 815, 978, 1630, 1956, 2237, 2445, 3260, 4474, 4890, 6711, 8948, 9780, 11185, 13422, 22370, 26844, 33555, 44740, 67110, 134220, 364631, 729262, 1093893, 1458524, 1823155, 2187786, 3646310, 4375572, 5469465, 7292620, 10938930, 21877860]

約数ペア:

[(1, 21877860), (2, 10938930), (3, 7292620), (4, 5469465), (5, 4375572), (6, 3646310), (10, 2187786), (12, 1823155), (15, 1458524), (20, 1093893), (30, 729262), (60, 364631), (163, 134220), (326, 67110), (489, 44740), (652, 33555), (815, 26844), (978, 22370), (1630, 13422), (1956, 11185), (2237, 9780), (2445, 8948), (3260, 6711), (4474, 4890)]