211038681

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{1319}}^1$

素因数の和:1749

約数の個数: 32

約数和(自身を含む): 339609600

約数和(自身を除く): 128570919

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 401, 1203, 1319, 2807, 3957, 7619, 8421, 9233, 22857, 25061, 27699, 53333, 75183, 159999, 175427, 526281, 528919, 1586757, 3702433, 10049461, 11107299, 30148383, 70346227, 211038681]

約数ペア:

[(1, 211038681), (3, 70346227), (7, 30148383), (19, 11107299), (21, 10049461), (57, 3702433), (133, 1586757), (399, 528919), (401, 526281), (1203, 175427), (1319, 159999), (2807, 75183), (3957, 53333), (7619, 27699), (8421, 25061), (9233, 22857)]