215850489

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 307891200

約数和(自身を除く): 92040711

約数列:

[1, 3, 31, 37, 93, 111, 149, 421, 447, 1147, 1263, 3441, 4619, 5513, 13051, 13857, 15577, 16539, 39153, 46731, 62729, 170903, 188187, 482887, 512709, 1448661, 1944599, 2320973, 5833797, 6962919, 71950163, 215850489]

約数ペア:

[(1, 215850489), (3, 71950163), (31, 6962919), (37, 5833797), (93, 2320973), (111, 1944599), (149, 1448661), (421, 512709), (447, 482887), (1147, 188187), (1263, 170903), (3441, 62729), (4619, 46731), (5513, 39153), (13051, 16539), (13857, 15577)]