21406530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{8597}}^1$

素因数の和:8690

約数の個数: 32

約数和(自身を含む): 52000704

約数和(自身を除く): 30594174

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 83, 166, 249, 415, 498, 830, 1245, 2490, 8597, 17194, 25791, 42985, 51582, 85970, 128955, 257910, 713551, 1427102, 2140653, 3567755, 4281306, 7135510, 10703265, 21406530]

約数ペア:

[(1, 21406530), (2, 10703265), (3, 7135510), (5, 4281306), (6, 3567755), (10, 2140653), (15, 1427102), (30, 713551), (83, 257910), (166, 128955), (249, 85970), (415, 51582), (498, 42985), (830, 25791), (1245, 17194), (2490, 8597)]