19748565

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 36457200

約数和(自身を除く): 16708635

約数列:

[1, 3, 5, 9, 15, 29, 37, 45, 87, 111, 145, 185, 261, 333, 409, 435, 555, 1073, 1227, 1305, 1665, 2045, 3219, 3681, 5365, 6135, 9657, 11861, 15133, 16095, 18405, 35583, 45399, 48285, 59305, 75665, 106749, 136197, 177915, 226995, 438857, 533745, 680985, 1316571, 2194285, 3949713, 6582855, 19748565]

約数ペア:

[(1, 19748565), (3, 6582855), (5, 3949713), (9, 2194285), (15, 1316571), (29, 680985), (37, 533745), (45, 438857), (87, 226995), (111, 177915), (145, 136197), (185, 106749), (261, 75665), (333, 59305), (409, 48285), (435, 45399), (555, 35583), (1073, 18405), (1227, 16095), (1305, 15133), (1665, 11861), (2045, 9657), (3219, 6135), (3681, 5365)]