21846890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1031}}^1$

素因数の和:1214

約数の個数: 32

約数和(自身を含む): 42650496

約数和(自身を除く): 20803606

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 326, 815, 1031, 1630, 2062, 2119, 4238, 5155, 10310, 10595, 13403, 21190, 26806, 67015, 134030, 168053, 336106, 840265, 1680530, 2184689, 4369378, 10923445, 21846890]

約数ペア:

[(1, 21846890), (2, 10923445), (5, 4369378), (10, 2184689), (13, 1680530), (26, 840265), (65, 336106), (130, 168053), (163, 134030), (326, 67015), (815, 26806), (1031, 21190), (1630, 13403), (2062, 10595), (2119, 10310), (4238, 5155)]