61521019

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{401}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 74791296

約数和(自身を除く): 13270277

約数列:

[1, 7, 31, 49, 101, 217, 401, 707, 1519, 2807, 3131, 4949, 12431, 19649, 21917, 40501, 87017, 153419, 283507, 609119, 1255531, 1984549, 8788717, 61521019]

約数ペア:

[(1, 61521019), (7, 8788717), (31, 1984549), (49, 1255531), (101, 609119), (217, 283507), (401, 153419), (707, 87017), (1519, 40501), (2807, 21917), (3131, 19649), (4949, 12431)]