20421690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16603}}^1$

素因数の和:16654

約数の個数: 32

約数和(自身を含む): 50210496

約数和(自身を除く): 29788806

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 123, 205, 246, 410, 615, 1230, 16603, 33206, 49809, 83015, 99618, 166030, 249045, 498090, 680723, 1361446, 2042169, 3403615, 4084338, 6807230, 10210845, 20421690]

約数ペア:

[(1, 20421690), (2, 10210845), (3, 6807230), (5, 4084338), (6, 3403615), (10, 2042169), (15, 1361446), (30, 680723), (41, 498090), (82, 249045), (123, 166030), (205, 99618), (246, 83015), (410, 49809), (615, 33206), (1230, 16603)]