21731112

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 66528000

約数和(自身を除く): 44796888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 71, 72, 78, 104, 108, 109, 117, 142, 156, 213, 216, 218, 234, 284, 312, 327, 351, 426, 436, 468, 568, 639, 654, 702, 852, 872, 923, 936, 981, 1278, 1308, 1404, 1417, 1704, 1846, 1917, 1962, 2556, 2616, 2769, 2808, 2834, 2943, 3692, 3834, 3924, 4251, 5112, 5538, 5668, 5886, 7384, 7668, 7739, 7848, 8307, 8502, 11076, 11336, 11772, 12753, 15336, 15478, 16614, 17004, 22152, 23217, 23544, 24921, 25506, 30956, 33228, 34008, 38259, 46434, 49842, 51012, 61912, 66456, 69651, 76518, 92868, 99684, 100607, 102024, 139302, 153036, 185736, 199368, 201214, 208953, 278604, 301821, 306072, 402428, 417906, 557208, 603642, 804856, 835812, 905463, 1207284, 1671624, 1810926, 2414568, 2716389, 3621852, 5432778, 7243704, 10865556, 21731112]

約数ペア:

[(1, 21731112), (2, 10865556), (3, 7243704), (4, 5432778), (6, 3621852), (8, 2716389), (9, 2414568), (12, 1810926), (13, 1671624), (18, 1207284), (24, 905463), (26, 835812), (27, 804856), (36, 603642), (39, 557208), (52, 417906), (54, 402428), (71, 306072), (72, 301821), (78, 278604), (104, 208953), (108, 201214), (109, 199368), (117, 185736), (142, 153036), (156, 139302), (213, 102024), (216, 100607), (218, 99684), (234, 92868), (284, 76518), (312, 69651), (327, 66456), (351, 61912), (426, 51012), (436, 49842), (468, 46434), (568, 38259), (639, 34008), (654, 33228), (702, 30956), (852, 25506), (872, 24921), (923, 23544), (936, 23217), (981, 22152), (1278, 17004), (1308, 16614), (1404, 15478), (1417, 15336), (1704, 12753), (1846, 11772), (1917, 11336), (1962, 11076), (2556, 8502), (2616, 8307), (2769, 7848), (2808, 7739), (2834, 7668), (2943, 7384), (3692, 5886), (3834, 5668), (3924, 5538), (4251, 5112)]