20168316

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:671

約数の個数: 72

約数和(自身を含む): 58740864

約数和(自身を除く): 38572548

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 163, 252, 326, 489, 491, 652, 978, 982, 1141, 1467, 1473, 1956, 1964, 2282, 2934, 2946, 3423, 3437, 4419, 4564, 5868, 5892, 6846, 6874, 8838, 10269, 10311, 13692, 13748, 17676, 20538, 20622, 30933, 41076, 41244, 61866, 80033, 123732, 160066, 240099, 320132, 480198, 560231, 720297, 960396, 1120462, 1440594, 1680693, 2240924, 2881188, 3361386, 5042079, 6722772, 10084158, 20168316]

約数ペア:

[(1, 20168316), (2, 10084158), (3, 6722772), (4, 5042079), (6, 3361386), (7, 2881188), (9, 2240924), (12, 1680693), (14, 1440594), (18, 1120462), (21, 960396), (28, 720297), (36, 560231), (42, 480198), (63, 320132), (84, 240099), (126, 160066), (163, 123732), (252, 80033), (326, 61866), (489, 41244), (491, 41076), (652, 30933), (978, 20622), (982, 20538), (1141, 17676), (1467, 13748), (1473, 13692), (1956, 10311), (1964, 10269), (2282, 8838), (2934, 6874), (2946, 6846), (3423, 5892), (3437, 5868), (4419, 4564)]