19186970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 38581704

約数和(自身を除く): 19394734

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 121, 157, 202, 242, 314, 505, 605, 785, 1010, 1111, 1210, 1570, 1727, 2222, 3454, 5555, 8635, 11110, 12221, 15857, 17270, 18997, 24442, 31714, 37994, 61105, 79285, 94985, 122210, 158570, 174427, 189970, 348854, 872135, 1744270, 1918697, 3837394, 9593485, 19186970]

約数ペア:

[(1, 19186970), (2, 9593485), (5, 3837394), (10, 1918697), (11, 1744270), (22, 872135), (55, 348854), (101, 189970), (110, 174427), (121, 158570), (157, 122210), (202, 94985), (242, 79285), (314, 61105), (505, 37994), (605, 31714), (785, 24442), (1010, 18997), (1111, 17270), (1210, 15857), (1570, 12221), (1727, 11110), (2222, 8635), (3454, 5555)]