21065406910

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{607}}^1\times {\mathrm{24967}}^1$

素因数の和:25720

約数の個数: 32

約数和(自身を含む): 38254970880

約数和(自身を除く): 17189563970

約数列:

[1, 2, 5, 10, 139, 278, 607, 695, 1214, 1390, 3035, 6070, 24967, 49934, 84373, 124835, 168746, 249670, 421865, 843730, 3470413, 6940826, 15154969, 17352065, 30309938, 34704130, 75774845, 151549690, 2106540691, 4213081382, 10532703455, 21065406910]

約数ペア:

[(1, 21065406910), (2, 10532703455), (5, 4213081382), (10, 2106540691), (139, 151549690), (278, 75774845), (607, 34704130), (695, 30309938), (1214, 17352065), (1390, 15154969), (3035, 6940826), (6070, 3470413), (24967, 843730), (49934, 421865), (84373, 249670), (124835, 168746)]