21426642

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:148

約数の個数: 96

約数和(自身を含む): 52715520

約数和(自身を除く): 31288878

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 43, 47, 57, 62, 86, 93, 94, 114, 129, 141, 171, 186, 258, 279, 282, 342, 387, 423, 558, 589, 774, 817, 846, 893, 1178, 1333, 1457, 1634, 1767, 1786, 2021, 2451, 2666, 2679, 2914, 3534, 3999, 4042, 4371, 4902, 5301, 5358, 6063, 7353, 7998, 8037, 8742, 10602, 11997, 12126, 13113, 14706, 16074, 18189, 23994, 25327, 26226, 27683, 36378, 38399, 50654, 55366, 62651, 75981, 76798, 83049, 115197, 125302, 151962, 166098, 187953, 227943, 230394, 249147, 345591, 375906, 455886, 498294, 563859, 691182, 1127718, 1190369, 2380738, 3571107, 7142214, 10713321, 21426642]

約数ペア:

[(1, 21426642), (2, 10713321), (3, 7142214), (6, 3571107), (9, 2380738), (18, 1190369), (19, 1127718), (31, 691182), (38, 563859), (43, 498294), (47, 455886), (57, 375906), (62, 345591), (86, 249147), (93, 230394), (94, 227943), (114, 187953), (129, 166098), (141, 151962), (171, 125302), (186, 115197), (258, 83049), (279, 76798), (282, 75981), (342, 62651), (387, 55366), (423, 50654), (558, 38399), (589, 36378), (774, 27683), (817, 26226), (846, 25327), (893, 23994), (1178, 18189), (1333, 16074), (1457, 14706), (1634, 13113), (1767, 12126), (1786, 11997), (2021, 10602), (2451, 8742), (2666, 8037), (2679, 7998), (2914, 7353), (3534, 6063), (3999, 5358), (4042, 5301), (4371, 4902)]