19091828

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 39709824

約数和(自身を除く): 20617996

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 101, 157, 172, 202, 301, 314, 404, 602, 628, 707, 1099, 1204, 1414, 2198, 2828, 4343, 4396, 6751, 8686, 13502, 15857, 17372, 27004, 30401, 31714, 47257, 60802, 63428, 94514, 110999, 121604, 189028, 221998, 443996, 681851, 1363702, 2727404, 4772957, 9545914, 19091828]

約数ペア:

[(1, 19091828), (2, 9545914), (4, 4772957), (7, 2727404), (14, 1363702), (28, 681851), (43, 443996), (86, 221998), (101, 189028), (157, 121604), (172, 110999), (202, 94514), (301, 63428), (314, 60802), (404, 47257), (602, 31714), (628, 30401), (707, 27004), (1099, 17372), (1204, 15857), (1414, 13502), (2198, 8686), (2828, 6751), (4343, 4396)]