15721423926

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2838827}}^1$

素因数の和:2838916

約数の個数: 32

約数和(自身を含む): 34338463488

約数和(自身を除く): 18617039562

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 5538, 2838827, 5677654, 8516481, 17032962, 36904751, 73809502, 110714253, 201556717, 221428506, 403113434, 604670151, 1209340302, 2620237321, 5240474642, 7860711963, 15721423926]

約数ペア:

[(1, 15721423926), (2, 7860711963), (3, 5240474642), (6, 2620237321), (13, 1209340302), (26, 604670151), (39, 403113434), (71, 221428506), (78, 201556717), (142, 110714253), (213, 73809502), (426, 36904751), (923, 17032962), (1846, 8516481), (2769, 5677654), (5538, 2838827)]