21760076.000000000

素因数分解:

$5^3\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:524

約数の個数: 32

約数和(自身を含む): 134447040

約数和(自身を除く): 31739665

約数列:

[1, 5, 25, 37, 53, 125, 185, 265, 419, 925, 1325, 1961, 2095, 4625, 6625, 9805, 10475, 15503, 22207, 49025, 52375, 77515, 111035, 245125, 387575, 555175, 821659, 1937875, 2775875, 4108295, 20541475, 102707375]

約数ペア:

[(1, 102707375), (5, 20541475), (25, 4108295), (37, 2775875), (53, 1937875), (125, 821659), (185, 555175), (265, 387575), (419, 245125), (925, 111035), (1325, 77515), (1961, 52375), (2095, 49025), (4625, 22207), (6625, 15503), (9805, 10475)]