21455782

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 35020800

約数和(自身を除く): 13565018

約数列:

[1, 2, 31, 37, 47, 62, 74, 94, 199, 398, 1147, 1457, 1739, 2294, 2914, 3478, 6169, 7363, 9353, 12338, 14726, 18706, 53909, 107818, 228253, 289943, 346061, 456506, 579886, 692122, 10727891, 21455782]

約数ペア:

[(1, 21455782), (2, 10727891), (31, 692122), (37, 579886), (47, 456506), (62, 346061), (74, 289943), (94, 228253), (199, 107818), (398, 53909), (1147, 18706), (1457, 14726), (1739, 12338), (2294, 9353), (2914, 7363), (3478, 6169)]