19915215

素因数分解:

$3^1\times 5^1\times {\mathrm{467}}^1\times {\mathrm{2843}}^1$

素因数の和:3318

約数の個数: 16

約数和(自身を含む): 31943808

約数和(自身を除く): 12028593

約数列:

[1, 3, 5, 15, 467, 1401, 2335, 2843, 7005, 8529, 14215, 42645, 1327681, 3983043, 6638405, 19915215]

約数ペア:

[(1, 19915215), (3, 6638405), (5, 3983043), (15, 1327681), (467, 42645), (1401, 14215), (2335, 8529), (2843, 7005)]