21355464

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{68447}}^1$

素因数の和:68469

約数の個数: 32

約数和(自身を含む): 57496320

約数和(自身を除く): 36140856

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 68447, 136894, 205341, 273788, 410682, 547576, 821364, 889811, 1642728, 1779622, 2669433, 3559244, 5338866, 7118488, 10677732, 21355464]

約数ペア:

[(1, 21355464), (2, 10677732), (3, 7118488), (4, 5338866), (6, 3559244), (8, 2669433), (12, 1779622), (13, 1642728), (24, 889811), (26, 821364), (39, 547576), (52, 410682), (78, 273788), (104, 205341), (156, 136894), (312, 68447)]