21384420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11497}}^1$

素因数の和:11540

約数の個数: 48

約数和(自身を含む): 61813248

約数和(自身を除く): 40428828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11497, 22994, 34491, 45988, 57485, 68982, 114970, 137964, 172455, 229940, 344910, 356407, 689820, 712814, 1069221, 1425628, 1782035, 2138442, 3564070, 4276884, 5346105, 7128140, 10692210, 21384420]

約数ペア:

[(1, 21384420), (2, 10692210), (3, 7128140), (4, 5346105), (5, 4276884), (6, 3564070), (10, 2138442), (12, 1782035), (15, 1425628), (20, 1069221), (30, 712814), (31, 689820), (60, 356407), (62, 344910), (93, 229940), (124, 172455), (155, 137964), (186, 114970), (310, 68982), (372, 57485), (465, 45988), (620, 34491), (930, 22994), (1860, 11497)]