21323665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 29154816

約数和(自身を除く): 7831151

約数列:

[1, 5, 11, 47, 55, 73, 113, 235, 365, 517, 565, 803, 1243, 2585, 3431, 4015, 5311, 6215, 8249, 17155, 26555, 37741, 41245, 58421, 90739, 188705, 292105, 387703, 453695, 1938515, 4264733, 21323665]

約数ペア:

[(1, 21323665), (5, 4264733), (11, 1938515), (47, 453695), (55, 387703), (73, 292105), (113, 188705), (235, 90739), (365, 58421), (517, 41245), (565, 37741), (803, 26555), (1243, 17155), (2585, 8249), (3431, 6215), (4015, 5311)]