21000279741

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{964333}}^1$

素因数の和:964421

約数の個数: 32

約数和(自身を含む): 34438295808

約数和(自身を除く): 13438016067

約数列:

[1, 3, 7, 17, 21, 51, 61, 119, 183, 357, 427, 1037, 1281, 3111, 7259, 21777, 964333, 2892999, 6750331, 16393661, 20250993, 49180983, 58824313, 114755627, 176472939, 344266881, 411770191, 1000013321, 1235310573, 3000039963, 7000093247, 21000279741]

約数ペア:

[(1, 21000279741), (3, 7000093247), (7, 3000039963), (17, 1235310573), (21, 1000013321), (51, 411770191), (61, 344266881), (119, 176472939), (183, 114755627), (357, 58824313), (427, 49180983), (1037, 20250993), (1281, 16393661), (3111, 6750331), (7259, 2892999), (21777, 964333)]