30721821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:325

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 15001059

約数列:

[1, 3, 13, 39, 53, 89, 159, 167, 267, 501, 689, 1157, 2067, 2171, 3471, 4717, 6513, 8851, 14151, 14863, 26553, 44589, 61321, 115063, 183963, 193219, 345189, 579657, 787739, 2363217, 10240607, 30721821]

約数ペア:

[(1, 30721821), (3, 10240607), (13, 2363217), (39, 787739), (53, 579657), (89, 345189), (159, 193219), (167, 183963), (267, 115063), (501, 61321), (689, 44589), (1157, 26553), (2067, 14863), (2171, 14151), (3471, 8851), (4717, 6513)]