19831455

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 39633984

約数和(自身を除く): 19802529

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 157, 315, 401, 471, 785, 1099, 1203, 1413, 2005, 2355, 2807, 3297, 3609, 5495, 6015, 7065, 8421, 9891, 14035, 16485, 18045, 25263, 42105, 49455, 62957, 126315, 188871, 314785, 440699, 566613, 944355, 1322097, 2203495, 2833065, 3966291, 6610485, 19831455]

約数ペア:

[(1, 19831455), (3, 6610485), (5, 3966291), (7, 2833065), (9, 2203495), (15, 1322097), (21, 944355), (35, 566613), (45, 440699), (63, 314785), (105, 188871), (157, 126315), (315, 62957), (401, 49455), (471, 42105), (785, 25263), (1099, 18045), (1203, 16485), (1413, 14035), (2005, 9891), (2355, 8421), (2807, 7065), (3297, 6015), (3609, 5495)]