213315879

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1811}}^1$

素因数の和:1971

約数の個数: 32

約数和(自身を含む): 333987840

約数和(自身を除く): 120671961

約数列:

[1, 3, 7, 21, 71, 79, 213, 237, 497, 553, 1491, 1659, 1811, 5433, 5609, 12677, 16827, 38031, 39263, 117789, 128581, 143069, 385743, 429207, 900067, 1001483, 2700201, 3004449, 10157899, 30473697, 71105293, 213315879]

約数ペア:

[(1, 213315879), (3, 71105293), (7, 30473697), (21, 10157899), (71, 3004449), (79, 2700201), (213, 1001483), (237, 900067), (497, 429207), (553, 385743), (1491, 143069), (1659, 128581), (1811, 117789), (5433, 39263), (5609, 38031), (12677, 16827)]