21000388620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2147279}}^1$

素因数の和:2147454

約数の個数: 48

約数和(自身を含む): 59161858560

約数和(自身を除く): 38161469940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 652, 815, 978, 1630, 1956, 2445, 3260, 4890, 9780, 2147279, 4294558, 6441837, 8589116, 10736395, 12883674, 21472790, 25767348, 32209185, 42945580, 64418370, 128836740, 350006477, 700012954, 1050019431, 1400025908, 1750032385, 2100038862, 3500064770, 4200077724, 5250097155, 7000129540, 10500194310, 21000388620]

約数ペア:

[(1, 21000388620), (2, 10500194310), (3, 7000129540), (4, 5250097155), (5, 4200077724), (6, 3500064770), (10, 2100038862), (12, 1750032385), (15, 1400025908), (20, 1050019431), (30, 700012954), (60, 350006477), (163, 128836740), (326, 64418370), (489, 42945580), (652, 32209185), (815, 25767348), (978, 21472790), (1630, 12883674), (1956, 10736395), (2445, 8589116), (3260, 6441837), (4890, 4294558), (9780, 2147279)]