21350132500

素因数分解:

$2^2\times 5^4\times {\mathrm{8540053}}^1$

素因数の和:8540077

約数の個数: 30

約数和(自身を含む): 46688475218

約数和(自身を除く): 25338342718

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1250, 2500, 8540053, 17080106, 34160212, 42700265, 85400530, 170801060, 213501325, 427002650, 854005300, 1067506625, 2135013250, 4270026500, 5337533125, 10675066250, 21350132500]

約数ペア:

[(1, 21350132500), (2, 10675066250), (4, 5337533125), (5, 4270026500), (10, 2135013250), (20, 1067506625), (25, 854005300), (50, 427002650), (100, 213501325), (125, 170801060), (250, 85400530), (500, 42700265), (625, 34160212), (1250, 17080106), (2500, 8540053)]