20151201

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 32568432

約数和(自身を除く): 12417231

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 163, 203, 489, 609, 841, 1141, 1421, 2523, 3423, 4263, 4727, 5887, 7987, 14181, 17661, 23961, 33089, 41209, 99267, 123627, 137083, 231623, 411249, 694869, 959581, 2878743, 6717067, 20151201]

約数ペア:

[(1, 20151201), (3, 6717067), (7, 2878743), (21, 959581), (29, 694869), (49, 411249), (87, 231623), (147, 137083), (163, 123627), (203, 99267), (489, 41209), (609, 33089), (841, 23961), (1141, 17661), (1421, 14181), (2523, 7987), (3423, 5887), (4263, 4727)]