21435690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1747}}^1$

素因数の和:2166

約数の個数: 32

約数和(自身を含む): 51600960

約数和(自身を除く): 30165270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 409, 818, 1227, 1747, 2045, 2454, 3494, 4090, 5241, 6135, 8735, 10482, 12270, 17470, 26205, 52410, 714523, 1429046, 2143569, 3572615, 4287138, 7145230, 10717845, 21435690]

約数ペア:

[(1, 21435690), (2, 10717845), (3, 7145230), (5, 4287138), (6, 3572615), (10, 2143569), (15, 1429046), (30, 714523), (409, 52410), (818, 26205), (1227, 17470), (1747, 12270), (2045, 10482), (2454, 8735), (3494, 6135), (4090, 5241)]