21930935

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:347

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 8550985

約数列:

[1, 5, 13, 17, 65, 85, 89, 221, 223, 445, 1105, 1115, 1157, 1513, 2899, 3791, 5785, 7565, 14495, 18955, 19669, 19847, 49283, 98345, 99235, 246415, 258011, 337399, 1290055, 1686995, 4386187, 21930935]

約数ペア:

[(1, 21930935), (5, 4386187), (13, 1686995), (17, 1290055), (65, 337399), (85, 258011), (89, 246415), (221, 99235), (223, 98345), (445, 49283), (1105, 19847), (1115, 19669), (1157, 18955), (1513, 14495), (2899, 7565), (3791, 5785)]