21584091

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 9934629

約数列:

[1, 3, 29, 31, 53, 87, 93, 151, 159, 453, 899, 1537, 1643, 2697, 4379, 4611, 4681, 4929, 8003, 13137, 14043, 24009, 47647, 135749, 142941, 232087, 248093, 407247, 696261, 744279, 7194697, 21584091]

約数ペア:

[(1, 21584091), (3, 7194697), (29, 744279), (31, 696261), (53, 407247), (87, 248093), (93, 232087), (151, 142941), (159, 135749), (453, 47647), (899, 24009), (1537, 14043), (1643, 13137), (2697, 8003), (4379, 4929), (4611, 4681)]