21969633

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{22259}}^1$

素因数の和:22316

約数の個数: 16

約数和(自身を含む): 34191360

約数和(自身を除く): 12221727

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 22259, 66777, 155813, 467439, 1046173, 3138519, 7323211, 21969633]

約数ペア:

[(1, 21969633), (3, 7323211), (7, 3138519), (21, 1046173), (47, 467439), (141, 155813), (329, 66777), (987, 22259)]