21740635

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{239}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 9778085

約数列:

[1, 5, 7, 23, 35, 113, 115, 161, 239, 565, 791, 805, 1195, 1673, 2599, 3955, 5497, 8365, 12995, 18193, 27007, 27485, 38479, 90965, 135035, 189049, 192395, 621161, 945245, 3105805, 4348127, 21740635]

約数ペア:

[(1, 21740635), (5, 4348127), (7, 3105805), (23, 945245), (35, 621161), (113, 192395), (115, 189049), (161, 135035), (239, 90965), (565, 38479), (791, 27485), (805, 27007), (1195, 18193), (1673, 12995), (2599, 8365), (3955, 5497)]