21770790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9941}}^1$

素因数の和:10024

約数の個数: 32

約数和(自身を含む): 52970976

約数和(自身を除く): 31200186

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 73, 146, 219, 365, 438, 730, 1095, 2190, 9941, 19882, 29823, 49705, 59646, 99410, 149115, 298230, 725693, 1451386, 2177079, 3628465, 4354158, 7256930, 10885395, 21770790]

約数ペア:

[(1, 21770790), (2, 10885395), (3, 7256930), (5, 4354158), (6, 3628465), (10, 2177079), (15, 1451386), (30, 725693), (73, 298230), (146, 149115), (219, 99410), (365, 59646), (438, 49705), (730, 29823), (1095, 19882), (2190, 9941)]