21988362

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1035

約数の個数: 48

約数和(自身を含む): 49948416

約数和(自身を除く): 27960054

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 62, 66, 93, 121, 186, 242, 341, 363, 682, 726, 977, 1023, 1954, 2046, 2931, 3751, 5862, 7502, 10747, 11253, 21494, 22506, 30287, 32241, 60574, 64482, 90861, 118217, 181722, 236434, 333157, 354651, 666314, 709302, 999471, 1998942, 3664727, 7329454, 10994181, 21988362]

約数ペア:

[(1, 21988362), (2, 10994181), (3, 7329454), (6, 3664727), (11, 1998942), (22, 999471), (31, 709302), (33, 666314), (62, 354651), (66, 333157), (93, 236434), (121, 181722), (186, 118217), (242, 90861), (341, 64482), (363, 60574), (682, 32241), (726, 30287), (977, 22506), (1023, 21494), (1954, 11253), (2046, 10747), (2931, 7502), (3751, 5862)]