21999510

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18803}}^1$

素因数の和:18829

約数の個数: 48

約数和(自身を含む): 61601904

約数和(自身を除く): 39602394

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585, 1170, 18803, 37606, 56409, 94015, 112818, 169227, 188030, 244439, 282045, 338454, 488878, 564090, 733317, 846135, 1222195, 1466634, 1692270, 2199951, 2444390, 3666585, 4399902, 7333170, 10999755, 21999510]

約数ペア:

[(1, 21999510), (2, 10999755), (3, 7333170), (5, 4399902), (6, 3666585), (9, 2444390), (10, 2199951), (13, 1692270), (15, 1466634), (18, 1222195), (26, 846135), (30, 733317), (39, 564090), (45, 488878), (65, 338454), (78, 282045), (90, 244439), (117, 188030), (130, 169227), (195, 112818), (234, 94015), (390, 56409), (585, 37606), (1170, 18803)]