20405286

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{401}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 48539088

約数和(自身を除く): 28133802

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 257, 401, 514, 771, 802, 1203, 1542, 2313, 2406, 2827, 3609, 4411, 4626, 5654, 7218, 8481, 8822, 13233, 16962, 25443, 26466, 39699, 50886, 79398, 103057, 206114, 309171, 618342, 927513, 1133627, 1855026, 2267254, 3400881, 6801762, 10202643, 20405286]

約数ペア:

[(1, 20405286), (2, 10202643), (3, 6801762), (6, 3400881), (9, 2267254), (11, 1855026), (18, 1133627), (22, 927513), (33, 618342), (66, 309171), (99, 206114), (198, 103057), (257, 79398), (401, 50886), (514, 39699), (771, 26466), (802, 25443), (1203, 16962), (1542, 13233), (2313, 8822), (2406, 8481), (2827, 7218), (3609, 5654), (4411, 4626)]