21617286

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1\times {\mathrm{409}}^1$

素因数の和:820

約数の個数: 32

約数和(自身を含む): 45342720

約数和(自身を除く): 23725434

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 383, 409, 766, 818, 1149, 1227, 2298, 2454, 8809, 9407, 17618, 18814, 26427, 28221, 52854, 56442, 156647, 313294, 469941, 939882, 3602881, 7205762, 10808643, 21617286]

約数ペア:

[(1, 21617286), (2, 10808643), (3, 7205762), (6, 3602881), (23, 939882), (46, 469941), (69, 313294), (138, 156647), (383, 56442), (409, 52854), (766, 28221), (818, 26427), (1149, 18814), (1227, 17618), (2298, 9407), (2454, 8809)]