87171399

素因数分解:

$3^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3557}}^1$

素因数の和:3959

約数の個数: 24

約数和(自身を含む): 144312480

約数和(自身を除く): 57141081

約数列:

[1, 3, 7, 9, 21, 63, 389, 1167, 2723, 3501, 3557, 8169, 10671, 24507, 24899, 32013, 74697, 224091, 1383673, 4151019, 9685711, 12453057, 29057133, 87171399]

約数ペア:

[(1, 87171399), (3, 29057133), (7, 12453057), (9, 9685711), (21, 4151019), (63, 1383673), (389, 224091), (1167, 74697), (2723, 32013), (3501, 24899), (3557, 24507), (8169, 10671)]