21107998

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1\times {\mathrm{829}}^1$

素因数の和:1299

約数の個数: 16

約数和(自身を含む): 32868000

約数和(自身を除く): 11760002

約数列:

[1, 2, 29, 58, 439, 829, 878, 1658, 12731, 24041, 25462, 48082, 363931, 727862, 10553999, 21107998]

約数ペア:

[(1, 21107998), (2, 10553999), (29, 727862), (58, 363931), (439, 48082), (829, 25462), (878, 24041), (1658, 12731)]