121111221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 211507200

約数和(自身を除く): 90395979

約数列:

[1, 3, 7, 11, 21, 29, 33, 77, 87, 101, 179, 203, 231, 303, 319, 537, 609, 707, 957, 1111, 1253, 1969, 2121, 2233, 2929, 3333, 3759, 5191, 5907, 6699, 7777, 8787, 13783, 15573, 18079, 20503, 23331, 32219, 36337, 41349, 54237, 57101, 61509, 96657, 109011, 126553, 171303, 198869, 225533, 379659, 399707, 524291, 596607, 676599, 1199121, 1392083, 1572873, 3670037, 4176249, 5767201, 11010111, 17301603, 40370407, 121111221]

約数ペア:

[(1, 121111221), (3, 40370407), (7, 17301603), (11, 11010111), (21, 5767201), (29, 4176249), (33, 3670037), (77, 1572873), (87, 1392083), (101, 1199121), (179, 676599), (203, 596607), (231, 524291), (303, 399707), (319, 379659), (537, 225533), (609, 198869), (707, 171303), (957, 126553), (1111, 109011), (1253, 96657), (1969, 61509), (2121, 57101), (2233, 54237), (2929, 41349), (3333, 36337), (3759, 32219), (5191, 23331), (5907, 20503), (6699, 18079), (7777, 15573), (8787, 13783)]