21000434684

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{6739549}}^1$

素因数の和:6739613

約数の個数: 24

約数和(自身を含む): 39628554000

約数和(自身を除く): 18628119316

約数列:

[1, 2, 4, 19, 38, 41, 76, 82, 164, 779, 1558, 3116, 6739549, 13479098, 26958196, 128051431, 256102862, 276321509, 512205724, 552643018, 1105286036, 5250108671, 10500217342, 21000434684]

約数ペア:

[(1, 21000434684), (2, 10500217342), (4, 5250108671), (19, 1105286036), (38, 552643018), (41, 512205724), (76, 276321509), (82, 256102862), (164, 128051431), (779, 26958196), (1558, 13479098), (3116, 6739549)]