19421140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^2$

素因数の和:504

約数の個数: 36

約数和(自身を含む): 43364916

約数和(自身を除く): 23943776

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 1195, 2390, 4063, 4780, 8126, 16252, 20315, 40630, 57121, 81260, 114242, 228484, 285605, 571210, 971057, 1142420, 1942114, 3884228, 4855285, 9710570, 19421140]

約数ペア:

[(1, 19421140), (2, 9710570), (4, 4855285), (5, 3884228), (10, 1942114), (17, 1142420), (20, 971057), (34, 571210), (68, 285605), (85, 228484), (170, 114242), (239, 81260), (340, 57121), (478, 40630), (956, 20315), (1195, 16252), (2390, 8126), (4063, 4780)]