18686538

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:513

約数の個数: 80

約数和(自身を含む): 47567520

約数和(自身を除く): 28880982

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 27, 38, 39, 54, 57, 78, 81, 114, 117, 162, 171, 234, 247, 342, 351, 467, 494, 513, 702, 741, 934, 1026, 1053, 1401, 1482, 1539, 2106, 2223, 2802, 3078, 4203, 4446, 6071, 6669, 8406, 8873, 12142, 12609, 13338, 17746, 18213, 20007, 25218, 26619, 36426, 37827, 40014, 53238, 54639, 75654, 79857, 109278, 115349, 159714, 163917, 230698, 239571, 327834, 346047, 479142, 491751, 692094, 718713, 983502, 1038141, 1437426, 2076282, 3114423, 6228846, 9343269, 18686538]

約数ペア:

[(1, 18686538), (2, 9343269), (3, 6228846), (6, 3114423), (9, 2076282), (13, 1437426), (18, 1038141), (19, 983502), (26, 718713), (27, 692094), (38, 491751), (39, 479142), (54, 346047), (57, 327834), (78, 239571), (81, 230698), (114, 163917), (117, 159714), (162, 115349), (171, 109278), (234, 79857), (247, 75654), (342, 54639), (351, 53238), (467, 40014), (494, 37827), (513, 36426), (702, 26619), (741, 25218), (934, 20007), (1026, 18213), (1053, 17746), (1401, 13338), (1482, 12609), (1539, 12142), (2106, 8873), (2223, 8406), (2802, 6669), (3078, 6071), (4203, 4446)]