21012532515

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11972953}}^1$

素因数の和:11972980

約数の個数: 32

約数和(自身を含む): 40229125440

約数和(自身を除く): 19216592925

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 117, 135, 195, 351, 585, 1755, 11972953, 35918859, 59864765, 107756577, 155648389, 179594295, 323269731, 466945167, 538782885, 778241945, 1400835501, 1616348655, 2334725835, 4202506503, 7004177505, 21012532515]

約数ペア:

[(1, 21012532515), (3, 7004177505), (5, 4202506503), (9, 2334725835), (13, 1616348655), (15, 1400835501), (27, 778241945), (39, 538782885), (45, 466945167), (65, 323269731), (117, 179594295), (135, 155648389), (195, 107756577), (351, 59864765), (585, 35918859), (1755, 11972953)]