19868799

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 9161601

約数列:

[1, 3, 29, 31, 53, 87, 93, 139, 159, 417, 899, 1537, 1643, 2697, 4031, 4309, 4611, 4929, 7367, 12093, 12927, 22101, 47647, 124961, 142941, 213643, 228377, 374883, 640929, 685131, 6622933, 19868799]

約数ペア:

[(1, 19868799), (3, 6622933), (29, 685131), (31, 640929), (53, 374883), (87, 228377), (93, 213643), (139, 142941), (159, 124961), (417, 47647), (899, 22101), (1537, 12927), (1643, 12093), (2697, 7367), (4031, 4929), (4309, 4611)]