212317209

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{307}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 347098752

約数和(自身を除く): 134781543

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 257, 299, 307, 771, 897, 921, 2313, 2691, 2763, 3341, 3991, 5911, 7061, 10023, 11973, 17733, 21183, 30069, 35919, 53199, 63549, 76843, 78899, 91793, 230529, 236697, 275379, 691587, 710091, 826137, 1025687, 1814677, 3077061, 5444031, 9231183, 16332093, 23590801, 70772403, 212317209]

約数ペア:

[(1, 212317209), (3, 70772403), (9, 23590801), (13, 16332093), (23, 9231183), (39, 5444031), (69, 3077061), (117, 1814677), (207, 1025687), (257, 826137), (299, 710091), (307, 691587), (771, 275379), (897, 236697), (921, 230529), (2313, 91793), (2691, 78899), (2763, 76843), (3341, 63549), (3991, 53199), (5911, 35919), (7061, 30069), (10023, 21183), (11973, 17733)]