21315510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1453}}^1$

素因数の和:1629

約数の個数: 48

約数和(自身を含む): 55798704

約数和(自身を除く): 34483194

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 163, 326, 489, 815, 978, 1453, 1467, 1630, 2445, 2906, 2934, 4359, 4890, 7265, 7335, 8718, 13077, 14530, 14670, 21795, 26154, 43590, 65385, 130770, 236839, 473678, 710517, 1184195, 1421034, 2131551, 2368390, 3552585, 4263102, 7105170, 10657755, 21315510]

約数ペア:

[(1, 21315510), (2, 10657755), (3, 7105170), (5, 4263102), (6, 3552585), (9, 2368390), (10, 2131551), (15, 1421034), (18, 1184195), (30, 710517), (45, 473678), (90, 236839), (163, 130770), (326, 65385), (489, 43590), (815, 26154), (978, 21795), (1453, 14670), (1467, 14530), (1630, 13077), (2445, 8718), (2906, 7335), (2934, 7265), (4359, 4890)]