20551986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12547}}^1$

素因数の和:12575

約数の個数: 48

約数和(自身を含む): 54809664

約数和(自身を除く): 34257678

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12547, 25094, 37641, 75282, 87829, 112923, 163111, 175658, 225846, 263487, 326222, 489333, 526974, 790461, 978666, 1141777, 1467999, 1580922, 2283554, 2935998, 3425331, 6850662, 10275993, 20551986]

約数ペア:

[(1, 20551986), (2, 10275993), (3, 6850662), (6, 3425331), (7, 2935998), (9, 2283554), (13, 1580922), (14, 1467999), (18, 1141777), (21, 978666), (26, 790461), (39, 526974), (42, 489333), (63, 326222), (78, 263487), (91, 225846), (117, 175658), (126, 163111), (182, 112923), (234, 87829), (273, 75282), (546, 37641), (819, 25094), (1638, 12547)]