20927608

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 44403120

約数和(自身を除く): 23475512

約数列:

[1, 2, 4, 8, 13, 23, 26, 46, 52, 92, 104, 169, 184, 299, 338, 598, 673, 676, 1196, 1346, 1352, 2392, 2692, 3887, 5384, 7774, 8749, 15479, 15548, 17498, 30958, 31096, 34996, 61916, 69992, 113737, 123832, 201227, 227474, 402454, 454948, 804908, 909896, 1609816, 2615951, 5231902, 10463804, 20927608]

約数ペア:

[(1, 20927608), (2, 10463804), (4, 5231902), (8, 2615951), (13, 1609816), (23, 909896), (26, 804908), (46, 454948), (52, 402454), (92, 227474), (104, 201227), (169, 123832), (184, 113737), (299, 69992), (338, 61916), (598, 34996), (673, 31096), (676, 30958), (1196, 17498), (1346, 15548), (1352, 15479), (2392, 8749), (2692, 7774), (3887, 5384)]