21938355

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16811}}^1$

素因数の和:16851

約数の個数: 24

約数和(自身を含む): 39340080

約数和(自身を除く): 17401725

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 16811, 50433, 84055, 151299, 252165, 487519, 756495, 1462557, 2437595, 4387671, 7312785, 21938355]

約数ペア:

[(1, 21938355), (3, 7312785), (5, 4387671), (9, 2437595), (15, 1462557), (29, 756495), (45, 487519), (87, 252165), (145, 151299), (261, 84055), (435, 50433), (1305, 16811)]