18561712

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{383}}^1$

素因数の和:637

約数の個数: 40

約数和(自身を含む): 38997504

約数和(自身を除く): 20435792

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 233, 383, 466, 766, 932, 1532, 1864, 3029, 3064, 3728, 4979, 6058, 6128, 9958, 12116, 19916, 24232, 39832, 48464, 79664, 89239, 178478, 356956, 713912, 1160107, 1427824, 2320214, 4640428, 9280856, 18561712]

約数ペア:

[(1, 18561712), (2, 9280856), (4, 4640428), (8, 2320214), (13, 1427824), (16, 1160107), (26, 713912), (52, 356956), (104, 178478), (208, 89239), (233, 79664), (383, 48464), (466, 39832), (766, 24232), (932, 19916), (1532, 12116), (1864, 9958), (3029, 6128), (3064, 6058), (3728, 4979)]