21345730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4999}}^1$

素因数の和:5074

約数の個数: 32

約数和(自身を含む): 44640000

約数和(自身を除く): 23294270

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 2135, 4270, 4999, 9998, 24995, 34993, 49990, 69986, 174965, 304939, 349930, 609878, 1524695, 2134573, 3049390, 4269146, 10672865, 21345730]

約数ペア:

[(1, 21345730), (2, 10672865), (5, 4269146), (7, 3049390), (10, 2134573), (14, 1524695), (35, 609878), (61, 349930), (70, 304939), (122, 174965), (305, 69986), (427, 49990), (610, 34993), (854, 24995), (2135, 9998), (4270, 4999)]