21232692

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^2$

素因数の和:171

約数の個数: 90

約数和(自身を含む): 60629954

約数和(自身を除く): 39397262

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 71, 78, 81, 108, 117, 142, 156, 162, 213, 234, 284, 324, 351, 426, 468, 639, 702, 852, 923, 1053, 1278, 1404, 1846, 1917, 2106, 2556, 2769, 3692, 3834, 4212, 5041, 5538, 5751, 7668, 8307, 10082, 11076, 11502, 15123, 16614, 20164, 23004, 24921, 30246, 33228, 45369, 49842, 60492, 65533, 74763, 90738, 99684, 131066, 136107, 149526, 181476, 196599, 262132, 272214, 299052, 393198, 408321, 544428, 589797, 786396, 816642, 1179594, 1633284, 1769391, 2359188, 3538782, 5308173, 7077564, 10616346, 21232692]

約数ペア:

[(1, 21232692), (2, 10616346), (3, 7077564), (4, 5308173), (6, 3538782), (9, 2359188), (12, 1769391), (13, 1633284), (18, 1179594), (26, 816642), (27, 786396), (36, 589797), (39, 544428), (52, 408321), (54, 393198), (71, 299052), (78, 272214), (81, 262132), (108, 196599), (117, 181476), (142, 149526), (156, 136107), (162, 131066), (213, 99684), (234, 90738), (284, 74763), (324, 65533), (351, 60492), (426, 49842), (468, 45369), (639, 33228), (702, 30246), (852, 24921), (923, 23004), (1053, 20164), (1278, 16614), (1404, 15123), (1846, 11502), (1917, 11076), (2106, 10082), (2556, 8307), (2769, 7668), (3692, 5751), (3834, 5538), (4212, 5041)]