20521754

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1483}}^1$

素因数の和:1550

約数の個数: 32

約数和(自身を含む): 36542016

約数和(自身を除く): 16020262

約数列:

[1, 2, 11, 17, 22, 34, 37, 74, 187, 374, 407, 629, 814, 1258, 1483, 2966, 6919, 13838, 16313, 25211, 32626, 50422, 54871, 109742, 277321, 554642, 603581, 932807, 1207162, 1865614, 10260877, 20521754]

約数ペア:

[(1, 20521754), (2, 10260877), (11, 1865614), (17, 1207162), (22, 932807), (34, 603581), (37, 554642), (74, 277321), (187, 109742), (374, 54871), (407, 50422), (629, 32626), (814, 25211), (1258, 16313), (1483, 13838), (2966, 6919)]