18905908

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{947}}^1$

素因数の和:1012

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 21865676

約数列:

[1, 2, 4, 7, 14, 23, 28, 31, 46, 62, 92, 124, 161, 217, 322, 434, 644, 713, 868, 947, 1426, 1894, 2852, 3788, 4991, 6629, 9982, 13258, 19964, 21781, 26516, 29357, 43562, 58714, 87124, 117428, 152467, 205499, 304934, 410998, 609868, 675211, 821996, 1350422, 2700844, 4726477, 9452954, 18905908]

約数ペア:

[(1, 18905908), (2, 9452954), (4, 4726477), (7, 2700844), (14, 1350422), (23, 821996), (28, 675211), (31, 609868), (46, 410998), (62, 304934), (92, 205499), (124, 152467), (161, 117428), (217, 87124), (322, 58714), (434, 43562), (644, 29357), (713, 26516), (868, 21781), (947, 19964), (1426, 13258), (1894, 9982), (2852, 6629), (3788, 4991)]