221117988

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{28927}}^1$

素因数の和:28961

約数の個数: 72

約数和(自身を含む): 646367232

約数和(自身を除く): 425249244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 3822, 7644, 28927, 57854, 86781, 115708, 173562, 202489, 347124, 376051, 404978, 607467, 752102, 809956, 1128153, 1214934, 1417423, 1504204, 2256306, 2429868, 2632357, 2834846, 4252269, 4512612, 5264714, 5669692, 7897071, 8504538, 10529428, 15794142, 17009076, 18426499, 31588284, 36852998, 55279497, 73705996, 110558994, 221117988]

約数ペア:

[(1, 221117988), (2, 110558994), (3, 73705996), (4, 55279497), (6, 36852998), (7, 31588284), (12, 18426499), (13, 17009076), (14, 15794142), (21, 10529428), (26, 8504538), (28, 7897071), (39, 5669692), (42, 5264714), (49, 4512612), (52, 4252269), (78, 2834846), (84, 2632357), (91, 2429868), (98, 2256306), (147, 1504204), (156, 1417423), (182, 1214934), (196, 1128153), (273, 809956), (294, 752102), (364, 607467), (546, 404978), (588, 376051), (637, 347124), (1092, 202489), (1274, 173562), (1911, 115708), (2548, 86781), (3822, 57854), (7644, 28927)]