18387396

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 72

約数和(自身を含む): 49533120

約数和(自身を除く): 31145724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 53, 69, 92, 106, 138, 159, 207, 212, 276, 318, 414, 419, 477, 636, 828, 838, 954, 1219, 1257, 1676, 1908, 2438, 2514, 3657, 3771, 4876, 5028, 7314, 7542, 9637, 10971, 14628, 15084, 19274, 21942, 22207, 28911, 38548, 43884, 44414, 57822, 66621, 86733, 88828, 115644, 133242, 173466, 199863, 266484, 346932, 399726, 510761, 799452, 1021522, 1532283, 2043044, 3064566, 4596849, 6129132, 9193698, 18387396]

約数ペア:

[(1, 18387396), (2, 9193698), (3, 6129132), (4, 4596849), (6, 3064566), (9, 2043044), (12, 1532283), (18, 1021522), (23, 799452), (36, 510761), (46, 399726), (53, 346932), (69, 266484), (92, 199863), (106, 173466), (138, 133242), (159, 115644), (207, 88828), (212, 86733), (276, 66621), (318, 57822), (414, 44414), (419, 43884), (477, 38548), (636, 28911), (828, 22207), (838, 21942), (954, 19274), (1219, 15084), (1257, 14628), (1676, 10971), (1908, 9637), (2438, 7542), (2514, 7314), (3657, 5028), (3771, 4876)]