18850455

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{467}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 18889065

約数列:

[1, 3, 5, 9, 13, 15, 23, 27, 39, 45, 65, 69, 115, 117, 135, 195, 207, 299, 345, 351, 467, 585, 621, 897, 1035, 1401, 1495, 1755, 2335, 2691, 3105, 4203, 4485, 6071, 7005, 8073, 10741, 12609, 13455, 18213, 21015, 30355, 32223, 40365, 53705, 54639, 63045, 91065, 96669, 139633, 161115, 163917, 273195, 290007, 418899, 483345, 698165, 819585, 1256697, 1450035, 2094495, 3770091, 6283485, 18850455]

約数ペア:

[(1, 18850455), (3, 6283485), (5, 3770091), (9, 2094495), (13, 1450035), (15, 1256697), (23, 819585), (27, 698165), (39, 483345), (45, 418899), (65, 290007), (69, 273195), (115, 163917), (117, 161115), (135, 139633), (195, 96669), (207, 91065), (299, 63045), (345, 54639), (351, 53705), (467, 40365), (585, 32223), (621, 30355), (897, 21015), (1035, 18213), (1401, 13455), (1495, 12609), (1755, 10741), (2335, 8073), (2691, 7005), (3105, 6071), (4203, 4485)]