17984408

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 38556000

約数和(自身を除く): 20571592

約数列:

[1, 2, 4, 8, 13, 26, 29, 52, 58, 67, 89, 104, 116, 134, 178, 232, 268, 356, 377, 536, 712, 754, 871, 1157, 1508, 1742, 1943, 2314, 2581, 3016, 3484, 3886, 4628, 5162, 5963, 6968, 7772, 9256, 10324, 11926, 15544, 20648, 23852, 25259, 33553, 47704, 50518, 67106, 77519, 101036, 134212, 155038, 172927, 202072, 268424, 310076, 345854, 620152, 691708, 1383416, 2248051, 4496102, 8992204, 17984408]

約数ペア:

[(1, 17984408), (2, 8992204), (4, 4496102), (8, 2248051), (13, 1383416), (26, 691708), (29, 620152), (52, 345854), (58, 310076), (67, 268424), (89, 202072), (104, 172927), (116, 155038), (134, 134212), (178, 101036), (232, 77519), (268, 67106), (356, 50518), (377, 47704), (536, 33553), (712, 25259), (754, 23852), (871, 20648), (1157, 15544), (1508, 11926), (1742, 10324), (1943, 9256), (2314, 7772), (2581, 6968), (3016, 5963), (3484, 5162), (3886, 4628)]