1211891895

素因数分解:

$3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{242621}}^1$

素因数の和:242672

約数の個数: 32

約数和(自身を含む): 2212712640

約数和(自身を除く): 1000820745

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 111, 135, 185, 333, 555, 999, 1665, 4995, 242621, 727863, 1213105, 2183589, 3639315, 6550767, 8976977, 10917945, 26930931, 32753835, 44884885, 80792793, 134654655, 242378379, 403963965, 1211891895]

約数ペア:

[(1, 1211891895), (3, 403963965), (5, 242378379), (9, 134654655), (15, 80792793), (27, 44884885), (37, 32753835), (45, 26930931), (111, 10917945), (135, 8976977), (185, 6550767), (333, 3639315), (555, 2183589), (999, 1213105), (1665, 727863), (4995, 242621)]