18406908

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1123

約数の個数: 72

約数和(自身を含む): 51510368

約数和(自身を除く): 33103460

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 444, 468, 481, 666, 962, 1063, 1332, 1443, 1924, 2126, 2886, 3189, 4252, 4329, 5772, 6378, 8658, 9567, 12756, 13819, 17316, 19134, 27638, 38268, 39331, 41457, 55276, 78662, 82914, 117993, 124371, 157324, 165828, 235986, 248742, 353979, 471972, 497484, 511303, 707958, 1022606, 1415916, 1533909, 2045212, 3067818, 4601727, 6135636, 9203454, 18406908]

約数ペア:

[(1, 18406908), (2, 9203454), (3, 6135636), (4, 4601727), (6, 3067818), (9, 2045212), (12, 1533909), (13, 1415916), (18, 1022606), (26, 707958), (36, 511303), (37, 497484), (39, 471972), (52, 353979), (74, 248742), (78, 235986), (111, 165828), (117, 157324), (148, 124371), (156, 117993), (222, 82914), (234, 78662), (333, 55276), (444, 41457), (468, 39331), (481, 38268), (666, 27638), (962, 19134), (1063, 17316), (1332, 13819), (1443, 12756), (1924, 9567), (2126, 8658), (2886, 6378), (3189, 5772), (4252, 4329)]