17221840

素因数分解:

$2^4\times 5^1\times {\mathrm{215273}}^1$

素因数の和:215286

約数の個数: 20

約数和(自身を含む): 40040964

約数和(自身を除く): 22819124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 215273, 430546, 861092, 1076365, 1722184, 2152730, 3444368, 4305460, 8610920, 17221840]

約数ペア:

[(1, 17221840), (2, 8610920), (4, 4305460), (5, 3444368), (8, 2152730), (10, 1722184), (16, 1076365), (20, 861092), (40, 430546), (80, 215273)]