21053030

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{601}}^1$

素因数の和:752

約数の個数: 32

約数和(自身を含む): 39529728

約数和(自身を除く): 18476698

約数列:

[1, 2, 5, 10, 31, 62, 113, 155, 226, 310, 565, 601, 1130, 1202, 3005, 3503, 6010, 7006, 17515, 18631, 35030, 37262, 67913, 93155, 135826, 186310, 339565, 679130, 2105303, 4210606, 10526515, 21053030]

約数ペア:

[(1, 21053030), (2, 10526515), (5, 4210606), (10, 2105303), (31, 679130), (62, 339565), (113, 186310), (155, 135826), (226, 93155), (310, 67913), (565, 37262), (601, 35030), (1130, 18631), (1202, 17515), (3005, 7006), (3503, 6010)]