21756654

素因数分解:

$2^1\times 3^3\times {\mathrm{617}}^1\times {\mathrm{653}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 48500640

約数和(自身を除く): 26743986

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 617, 653, 1234, 1306, 1851, 1959, 3702, 3918, 5553, 5877, 11106, 11754, 16659, 17631, 33318, 35262, 402901, 805802, 1208703, 2417406, 3626109, 7252218, 10878327, 21756654]

約数ペア:

[(1, 21756654), (2, 10878327), (3, 7252218), (6, 3626109), (9, 2417406), (18, 1208703), (27, 805802), (54, 402901), (617, 35262), (653, 33318), (1234, 17631), (1306, 16659), (1851, 11754), (1959, 11106), (3702, 5877), (3918, 5553)]