21075195

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{743}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 35426304

約数和(自身を除く): 14351109

約数列:

[1, 3, 5, 15, 31, 61, 93, 155, 183, 305, 465, 743, 915, 1891, 2229, 3715, 5673, 9455, 11145, 23033, 28365, 45323, 69099, 115165, 135969, 226615, 345495, 679845, 1405013, 4215039, 7025065, 21075195]

約数ペア:

[(1, 21075195), (3, 7025065), (5, 4215039), (15, 1405013), (31, 679845), (61, 345495), (93, 226615), (155, 135969), (183, 115165), (305, 69099), (465, 45323), (743, 28365), (915, 23033), (1891, 11145), (2229, 9455), (3715, 5673)]