20170839

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10472361

約数列:

[1, 3, 13, 23, 39, 69, 113, 199, 299, 339, 597, 897, 1469, 2587, 2599, 4407, 4577, 7761, 7797, 13731, 22487, 33787, 59501, 67461, 101361, 178503, 292331, 517201, 876993, 1551603, 6723613, 20170839]

約数ペア:

[(1, 20170839), (3, 6723613), (13, 1551603), (23, 876993), (39, 517201), (69, 292331), (113, 178503), (199, 101361), (299, 67461), (339, 59501), (597, 33787), (897, 22487), (1469, 13731), (2587, 7797), (2599, 7761), (4407, 4577)]