19225521

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{619}}^1$

素因数の和:678

約数の個数: 48

約数和(自身を含む): 34819200

約数和(自身を除く): 15593679

約数列:

[1, 3, 7, 9, 17, 21, 29, 51, 63, 87, 119, 153, 203, 261, 357, 493, 609, 619, 1071, 1479, 1827, 1857, 3451, 4333, 4437, 5571, 10353, 10523, 12999, 17951, 31059, 31569, 38997, 53853, 73661, 94707, 125657, 161559, 220983, 305167, 376971, 662949, 915501, 1130913, 2136169, 2746503, 6408507, 19225521]

約数ペア:

[(1, 19225521), (3, 6408507), (7, 2746503), (9, 2136169), (17, 1130913), (21, 915501), (29, 662949), (51, 376971), (63, 305167), (87, 220983), (119, 161559), (153, 125657), (203, 94707), (261, 73661), (357, 53853), (493, 38997), (609, 31569), (619, 31059), (1071, 17951), (1479, 12999), (1827, 10523), (1857, 10353), (3451, 5571), (4333, 4437)]