21899270

素因数分解:

$2^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1\times {\mathrm{229}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 40439520

約数和(自身を除く): 18540250

約数列:

[1, 2, 5, 10, 73, 131, 146, 229, 262, 365, 458, 655, 730, 1145, 1310, 2290, 9563, 16717, 19126, 29999, 33434, 47815, 59998, 83585, 95630, 149995, 167170, 299990, 2189927, 4379854, 10949635, 21899270]

約数ペア:

[(1, 21899270), (2, 10949635), (5, 4379854), (10, 2189927), (73, 299990), (131, 167170), (146, 149995), (229, 95630), (262, 83585), (365, 59998), (458, 47815), (655, 33434), (730, 29999), (1145, 19126), (1310, 16717), (2290, 9563)]