20530575

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7019}}^1$

素因数の和:7048

約数の個数: 36

約数和(自身を含む): 39606840

約数和(自身を除く): 19076265

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 7019, 21057, 35095, 63171, 91247, 105285, 175475, 273741, 315855, 456235, 526425, 821223, 1368705, 1579275, 2281175, 4106115, 6843525, 20530575]

約数ペア:

[(1, 20530575), (3, 6843525), (5, 4106115), (9, 2281175), (13, 1579275), (15, 1368705), (25, 821223), (39, 526425), (45, 456235), (65, 315855), (75, 273741), (117, 175475), (195, 105285), (225, 91247), (325, 63171), (585, 35095), (975, 21057), (2925, 7019)]