21467840

素因数分解:

$2^6\times 5^1\times {\mathrm{73}}^1\times {\mathrm{919}}^1$

素因数の和:1009

約数の個数: 56

約数和(自身を含む): 51876960

約数和(自身を除く): 30409120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 73, 80, 146, 160, 292, 320, 365, 584, 730, 919, 1168, 1460, 1838, 2336, 2920, 3676, 4595, 4672, 5840, 7352, 9190, 11680, 14704, 18380, 23360, 29408, 36760, 58816, 67087, 73520, 134174, 147040, 268348, 294080, 335435, 536696, 670870, 1073392, 1341740, 2146784, 2683480, 4293568, 5366960, 10733920, 21467840]

約数ペア:

[(1, 21467840), (2, 10733920), (4, 5366960), (5, 4293568), (8, 2683480), (10, 2146784), (16, 1341740), (20, 1073392), (32, 670870), (40, 536696), (64, 335435), (73, 294080), (80, 268348), (146, 147040), (160, 134174), (292, 73520), (320, 67087), (365, 58816), (584, 36760), (730, 29408), (919, 23360), (1168, 18380), (1460, 14704), (1838, 11680), (2336, 9190), (2920, 7352), (3676, 5840), (4595, 4672)]