21668166

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:470

約数の個数: 72

約数和(自身を含む): 53955720

約数和(自身を除く): 32287554

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 169, 221, 234, 306, 338, 419, 442, 507, 663, 838, 1014, 1257, 1326, 1521, 1989, 2514, 2873, 3042, 3771, 3978, 5447, 5746, 7123, 7542, 8619, 10894, 14246, 16341, 17238, 21369, 25857, 32682, 42738, 49023, 51714, 64107, 70811, 92599, 98046, 128214, 141622, 185198, 212433, 277797, 424866, 555594, 637299, 833391, 1203787, 1274598, 1666782, 2407574, 3611361, 7222722, 10834083, 21668166]

約数ペア:

[(1, 21668166), (2, 10834083), (3, 7222722), (6, 3611361), (9, 2407574), (13, 1666782), (17, 1274598), (18, 1203787), (26, 833391), (34, 637299), (39, 555594), (51, 424866), (78, 277797), (102, 212433), (117, 185198), (153, 141622), (169, 128214), (221, 98046), (234, 92599), (306, 70811), (338, 64107), (419, 51714), (442, 49023), (507, 42738), (663, 32682), (838, 25857), (1014, 21369), (1257, 17238), (1326, 16341), (1521, 14246), (1989, 10894), (2514, 8619), (2873, 7542), (3042, 7123), (3771, 5746), (3978, 5447)]