21862143

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:309

約数の個数: 40

約数和(自身を含む): 34760880

約数和(自身を除く): 12898737

約数列:

[1, 3, 9, 27, 29, 41, 81, 87, 123, 227, 261, 369, 681, 783, 1107, 1189, 2043, 2349, 3321, 3567, 6129, 6583, 9307, 10701, 18387, 19749, 27921, 32103, 59247, 83763, 96309, 177741, 251289, 269903, 533223, 753867, 809709, 2429127, 7287381, 21862143]

約数ペア:

[(1, 21862143), (3, 7287381), (9, 2429127), (27, 809709), (29, 753867), (41, 533223), (81, 269903), (87, 251289), (123, 177741), (227, 96309), (261, 83763), (369, 59247), (681, 32103), (783, 27921), (1107, 19749), (1189, 18387), (2043, 10701), (2349, 9307), (3321, 6583), (3567, 6129)]