20685924

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 64576512

約数和(自身を除く): 43890588

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 43, 46, 63, 69, 83, 84, 86, 92, 126, 129, 138, 161, 166, 172, 207, 249, 252, 258, 276, 301, 322, 332, 387, 414, 483, 498, 516, 581, 602, 644, 747, 774, 828, 903, 966, 989, 996, 1162, 1204, 1449, 1494, 1548, 1743, 1806, 1909, 1932, 1978, 2324, 2709, 2898, 2967, 2988, 3486, 3569, 3612, 3818, 3956, 5229, 5418, 5727, 5796, 5934, 6923, 6972, 7138, 7636, 8901, 10458, 10707, 10836, 11454, 11868, 13363, 13846, 14276, 17181, 17802, 20769, 20916, 21414, 22908, 24983, 26726, 27692, 32121, 34362, 35604, 40089, 41538, 42828, 49966, 53452, 62307, 64242, 68724, 74949, 80178, 82087, 83076, 99932, 120267, 124614, 128484, 149898, 160356, 164174, 224847, 240534, 246261, 249228, 299796, 328348, 449694, 481068, 492522, 574609, 738783, 899388, 985044, 1149218, 1477566, 1723827, 2298436, 2955132, 3447654, 5171481, 6895308, 10342962, 20685924]

約数ペア:

[(1, 20685924), (2, 10342962), (3, 6895308), (4, 5171481), (6, 3447654), (7, 2955132), (9, 2298436), (12, 1723827), (14, 1477566), (18, 1149218), (21, 985044), (23, 899388), (28, 738783), (36, 574609), (42, 492522), (43, 481068), (46, 449694), (63, 328348), (69, 299796), (83, 249228), (84, 246261), (86, 240534), (92, 224847), (126, 164174), (129, 160356), (138, 149898), (161, 128484), (166, 124614), (172, 120267), (207, 99932), (249, 83076), (252, 82087), (258, 80178), (276, 74949), (301, 68724), (322, 64242), (332, 62307), (387, 53452), (414, 49966), (483, 42828), (498, 41538), (516, 40089), (581, 35604), (602, 34362), (644, 32121), (747, 27692), (774, 26726), (828, 24983), (903, 22908), (966, 21414), (989, 20916), (996, 20769), (1162, 17802), (1204, 17181), (1449, 14276), (1494, 13846), (1548, 13363), (1743, 11868), (1806, 11454), (1909, 10836), (1932, 10707), (1978, 10458), (2324, 8901), (2709, 7636), (2898, 7138), (2967, 6972), (2988, 6923), (3486, 5934), (3569, 5796), (3612, 5727), (3818, 5418), (3956, 5229)]