1311390388

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{21613}}^1$

素因数の和:21832

約数の個数: 48

約数和(自身を含む): 2875872384

約数和(自身を除く): 1564481996

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 197, 308, 394, 788, 1379, 2167, 2758, 4334, 5516, 8668, 15169, 21613, 30338, 43226, 60676, 86452, 151291, 237743, 302582, 475486, 605164, 950972, 1664201, 3328402, 4257761, 6656804, 8515522, 17031044, 29804327, 46835371, 59608654, 93670742, 119217308, 187341484, 327847597, 655695194, 1311390388]

約数ペア:

[(1, 1311390388), (2, 655695194), (4, 327847597), (7, 187341484), (11, 119217308), (14, 93670742), (22, 59608654), (28, 46835371), (44, 29804327), (77, 17031044), (154, 8515522), (197, 6656804), (308, 4257761), (394, 3328402), (788, 1664201), (1379, 950972), (2167, 605164), (2758, 475486), (4334, 302582), (5516, 237743), (8668, 151291), (15169, 86452), (21613, 60676), (30338, 43226)]