12181218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 64

約数和(自身を含む): 29410560

約数和(自身を除く): 17229342

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 73, 87, 137, 146, 174, 203, 219, 274, 406, 411, 438, 511, 609, 822, 959, 1022, 1218, 1533, 1918, 2117, 2877, 3066, 3973, 4234, 5754, 6351, 7946, 10001, 11919, 12702, 14819, 20002, 23838, 27811, 29638, 30003, 44457, 55622, 60006, 70007, 83433, 88914, 140014, 166866, 210021, 290029, 420042, 580058, 870087, 1740174, 2030203, 4060406, 6090609, 12181218]

約数ペア:

[(1, 12181218), (2, 6090609), (3, 4060406), (6, 2030203), (7, 1740174), (14, 870087), (21, 580058), (29, 420042), (42, 290029), (58, 210021), (73, 166866), (87, 140014), (137, 88914), (146, 83433), (174, 70007), (203, 60006), (219, 55622), (274, 44457), (406, 30003), (411, 29638), (438, 27811), (511, 23838), (609, 20002), (822, 14819), (959, 12702), (1022, 11919), (1218, 10001), (1533, 7946), (1918, 6351), (2117, 5754), (2877, 4234), (3066, 3973)]