18997668

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{587}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 51367680

約数和(自身を除く): 32370012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 31, 36, 58, 62, 87, 93, 116, 124, 174, 186, 261, 279, 348, 372, 522, 558, 587, 899, 1044, 1116, 1174, 1761, 1798, 2348, 2697, 3522, 3596, 5283, 5394, 7044, 8091, 10566, 10788, 16182, 17023, 18197, 21132, 32364, 34046, 36394, 51069, 54591, 68092, 72788, 102138, 109182, 153207, 163773, 204276, 218364, 306414, 327546, 527713, 612828, 655092, 1055426, 1583139, 2110852, 3166278, 4749417, 6332556, 9498834, 18997668]

約数ペア:

[(1, 18997668), (2, 9498834), (3, 6332556), (4, 4749417), (6, 3166278), (9, 2110852), (12, 1583139), (18, 1055426), (29, 655092), (31, 612828), (36, 527713), (58, 327546), (62, 306414), (87, 218364), (93, 204276), (116, 163773), (124, 153207), (174, 109182), (186, 102138), (261, 72788), (279, 68092), (348, 54591), (372, 51069), (522, 36394), (558, 34046), (587, 32364), (899, 21132), (1044, 18197), (1116, 17023), (1174, 16182), (1761, 10788), (1798, 10566), (2348, 8091), (2697, 7044), (3522, 5394), (3596, 5283)]