13021855

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 19699200

約数和(自身を除く): 6677345

約数列:

[1, 5, 7, 11, 35, 55, 77, 149, 227, 385, 745, 1043, 1135, 1589, 1639, 2497, 5215, 7945, 8195, 11473, 12485, 17479, 33823, 57365, 87395, 169115, 236761, 372053, 1183805, 1860265, 2604371, 13021855]

約数ペア:

[(1, 13021855), (5, 2604371), (7, 1860265), (11, 1183805), (35, 372053), (55, 236761), (77, 169115), (149, 87395), (227, 57365), (385, 33823), (745, 17479), (1043, 12485), (1135, 11473), (1589, 8195), (1639, 7945), (2497, 5215)]