20847508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 43110144

約数和(自身を除く): 22262636

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 47, 68, 94, 187, 188, 374, 517, 593, 748, 799, 1034, 1186, 1598, 2068, 2372, 3196, 6523, 8789, 10081, 13046, 17578, 20162, 26092, 27871, 35156, 40324, 55742, 110891, 111484, 221782, 306581, 443564, 473807, 613162, 947614, 1226324, 1895228, 5211877, 10423754, 20847508]

約数ペア:

[(1, 20847508), (2, 10423754), (4, 5211877), (11, 1895228), (17, 1226324), (22, 947614), (34, 613162), (44, 473807), (47, 443564), (68, 306581), (94, 221782), (187, 111484), (188, 110891), (374, 55742), (517, 40324), (593, 35156), (748, 27871), (799, 26092), (1034, 20162), (1186, 17578), (1598, 13046), (2068, 10081), (2372, 8789), (3196, 6523)]