21688110

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{607}}^1$

素因数の和:1017

約数の個数: 48

約数和(自身を含む): 56624256

約数和(自身を除く): 34936146

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 397, 607, 794, 1191, 1214, 1821, 1985, 2382, 3035, 3573, 3642, 3970, 5463, 5955, 6070, 7146, 9105, 10926, 11910, 17865, 18210, 27315, 35730, 54630, 240979, 481958, 722937, 1204895, 1445874, 2168811, 2409790, 3614685, 4337622, 7229370, 10844055, 21688110]

約数ペア:

[(1, 21688110), (2, 10844055), (3, 7229370), (5, 4337622), (6, 3614685), (9, 2409790), (10, 2168811), (15, 1445874), (18, 1204895), (30, 722937), (45, 481958), (90, 240979), (397, 54630), (607, 35730), (794, 27315), (1191, 18210), (1214, 17865), (1821, 11910), (1985, 10926), (2382, 9105), (3035, 7146), (3573, 6070), (3642, 5955), (3970, 5463)]