21503214

素因数分解:

$2^1\times 3^2\times {\mathrm{509}}^1\times {\mathrm{2347}}^1$

素因数の和:2864

約数の個数: 24

約数和(自身を含む): 46701720

約数和(自身を除く): 25198506

約数列:

[1, 2, 3, 6, 9, 18, 509, 1018, 1527, 2347, 3054, 4581, 4694, 7041, 9162, 14082, 21123, 42246, 1194623, 2389246, 3583869, 7167738, 10751607, 21503214]

約数ペア:

[(1, 21503214), (2, 10751607), (3, 7167738), (6, 3583869), (9, 2389246), (18, 1194623), (509, 42246), (1018, 21123), (1527, 14082), (2347, 9162), (3054, 7041), (4581, 4694)]