21511430

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1237}}^1$

素因数の和:1328

約数の個数: 32

約数和(自身を含む): 40646016

約数和(自身を除く): 19134586

約数列:

[1, 2, 5, 10, 37, 47, 74, 94, 185, 235, 370, 470, 1237, 1739, 2474, 3478, 6185, 8695, 12370, 17390, 45769, 58139, 91538, 116278, 228845, 290695, 457690, 581390, 2151143, 4302286, 10755715, 21511430]

約数ペア:

[(1, 21511430), (2, 10755715), (5, 4302286), (10, 2151143), (37, 581390), (47, 457690), (74, 290695), (94, 228845), (185, 116278), (235, 91538), (370, 58139), (470, 45769), (1237, 17390), (1739, 12370), (2474, 8695), (3478, 6185)]