20289675

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{5521}}^1$

素因数の和:5548

約数の個数: 36

約数和(自身を含む): 39029496

約数和(自身を除く): 18739821

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 525, 735, 1225, 3675, 5521, 16563, 27605, 38647, 82815, 115941, 138025, 193235, 270529, 414075, 579705, 811587, 966175, 1352645, 2898525, 4057935, 6763225, 20289675]

約数ペア:

[(1, 20289675), (3, 6763225), (5, 4057935), (7, 2898525), (15, 1352645), (21, 966175), (25, 811587), (35, 579705), (49, 414075), (75, 270529), (105, 193235), (147, 138025), (175, 115941), (245, 82815), (525, 38647), (735, 27605), (1225, 16563), (3675, 5521)]