18934216

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 23833784

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 89, 116, 131, 178, 203, 232, 262, 356, 406, 524, 623, 712, 812, 917, 1048, 1246, 1624, 1834, 2492, 2581, 3668, 3799, 4984, 5162, 7336, 7598, 10324, 11659, 15196, 18067, 20648, 23318, 26593, 30392, 36134, 46636, 53186, 72268, 81613, 93272, 106372, 144536, 163226, 212744, 326452, 338111, 652904, 676222, 1352444, 2366777, 2704888, 4733554, 9467108, 18934216]

約数ペア:

[(1, 18934216), (2, 9467108), (4, 4733554), (7, 2704888), (8, 2366777), (14, 1352444), (28, 676222), (29, 652904), (56, 338111), (58, 326452), (89, 212744), (116, 163226), (131, 144536), (178, 106372), (203, 93272), (232, 81613), (262, 72268), (356, 53186), (406, 46636), (524, 36134), (623, 30392), (712, 26593), (812, 23318), (917, 20648), (1048, 18067), (1246, 15196), (1624, 11659), (1834, 10324), (2492, 7598), (2581, 7336), (3668, 5162), (3799, 4984)]