21402690

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1453}}^1$

素因数の和:1954

約数の個数: 32

約数和(自身を含む): 51506496

約数和(自身を除く): 30103806

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 491, 982, 1453, 1473, 2455, 2906, 2946, 4359, 4910, 7265, 7365, 8718, 14530, 14730, 21795, 43590, 713423, 1426846, 2140269, 3567115, 4280538, 7134230, 10701345, 21402690]

約数ペア:

[(1, 21402690), (2, 10701345), (3, 7134230), (5, 4280538), (6, 3567115), (10, 2140269), (15, 1426846), (30, 713423), (491, 43590), (982, 21795), (1453, 14730), (1473, 14530), (2455, 8718), (2906, 7365), (2946, 7265), (4359, 4910)]