21213972

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{45329}}^1$

素因数の和:45352

約数の個数: 36

約数和(自身を含む): 57750420

約数和(自身を除く): 36536448

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 45329, 90658, 135987, 181316, 271974, 407961, 543948, 589277, 815922, 1178554, 1631844, 1767831, 2357108, 3535662, 5303493, 7071324, 10606986, 21213972]

約数ペア:

[(1, 21213972), (2, 10606986), (3, 7071324), (4, 5303493), (6, 3535662), (9, 2357108), (12, 1767831), (13, 1631844), (18, 1178554), (26, 815922), (36, 589277), (39, 543948), (52, 407961), (78, 271974), (117, 181316), (156, 135987), (234, 90658), (468, 45329)]