21356673

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{821}}^1$

素因数の和:889

約数の個数: 32

約数和(自身を含む): 33143040

約数和(自身を除く): 11786367

約数列:

[1, 3, 13, 23, 29, 39, 69, 87, 299, 377, 667, 821, 897, 1131, 2001, 2463, 8671, 10673, 18883, 23809, 26013, 32019, 56649, 71427, 245479, 309517, 547607, 736437, 928551, 1642821, 7118891, 21356673]

約数ペア:

[(1, 21356673), (3, 7118891), (13, 1642821), (23, 928551), (29, 736437), (39, 547607), (69, 309517), (87, 245479), (299, 71427), (377, 56649), (667, 32019), (821, 26013), (897, 23809), (1131, 18883), (2001, 10673), (2463, 8671)]