21328130

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1973}}^1$

素因数の和:2050

約数の個数: 32

約数和(自身を含む): 40932864

約数和(自身を除く): 19604734

約数列:

[1, 2, 5, 10, 23, 46, 47, 94, 115, 230, 235, 470, 1081, 1973, 2162, 3946, 5405, 9865, 10810, 19730, 45379, 90758, 92731, 185462, 226895, 453790, 463655, 927310, 2132813, 4265626, 10664065, 21328130]

約数ペア:

[(1, 21328130), (2, 10664065), (5, 4265626), (10, 2132813), (23, 927310), (46, 463655), (47, 453790), (94, 226895), (115, 185462), (230, 92731), (235, 90758), (470, 45379), (1081, 19730), (1973, 10810), (2162, 9865), (3946, 5405)]