21299772

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136537}}^1$

素因数の和:136557

約数の個数: 24

約数和(自身を含む): 53522896

約数和(自身を除く): 32223124

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136537, 273074, 409611, 546148, 819222, 1638444, 1774981, 3549962, 5324943, 7099924, 10649886, 21299772]

約数ペア:

[(1, 21299772), (2, 10649886), (3, 7099924), (4, 5324943), (6, 3549962), (12, 1774981), (13, 1638444), (26, 819222), (39, 546148), (52, 409611), (78, 273074), (156, 136537)]