21091184

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1549}}^1$

素因数の和:1617

約数の個数: 40

約数和(自身を含む): 43821600

約数和(自身を除く): 22730416

約数列:

[1, 2, 4, 8, 16, 23, 37, 46, 74, 92, 148, 184, 296, 368, 592, 851, 1549, 1702, 3098, 3404, 6196, 6808, 12392, 13616, 24784, 35627, 57313, 71254, 114626, 142508, 229252, 285016, 458504, 570032, 917008, 1318199, 2636398, 5272796, 10545592, 21091184]

約数ペア:

[(1, 21091184), (2, 10545592), (4, 5272796), (8, 2636398), (16, 1318199), (23, 917008), (37, 570032), (46, 458504), (74, 285016), (92, 229252), (148, 142508), (184, 114626), (296, 71254), (368, 57313), (592, 35627), (851, 24784), (1549, 13616), (1702, 12392), (3098, 6808), (3404, 6196)]