18928988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{1163}}^1$

素因数の和:1493

約数の個数: 24

約数和(自身を含む): 35818608

約数和(自身を除く): 16889620

約数列:

[1, 2, 4, 13, 26, 52, 313, 626, 1163, 1252, 2326, 4069, 4652, 8138, 15119, 16276, 30238, 60476, 364019, 728038, 1456076, 4732247, 9464494, 18928988]

約数ペア:

[(1, 18928988), (2, 9464494), (4, 4732247), (13, 1456076), (26, 728038), (52, 364019), (313, 60476), (626, 30238), (1163, 16276), (1252, 15119), (2326, 8138), (4069, 4652)]