20921823965

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{1386929}}^1$

素因数の和:1387372

約数の個数: 16

約数和(自身を含む): 28759380480

約数和(自身を除く): 7837556515

約数列:

[1, 5, 7, 35, 431, 2155, 3017, 15085, 1386929, 6934645, 9708503, 48542515, 597766399, 2988831995, 4184364793, 20921823965]

約数ペア:

[(1, 20921823965), (5, 4184364793), (7, 2988831995), (35, 597766399), (431, 48542515), (2155, 9708503), (3017, 6934645), (15085, 1386929)]