21031326

素因数分解:

$2^1\times 3^4\times {\mathrm{197}}^1\times {\mathrm{659}}^1$

素因数の和:870

約数の個数: 40

約数和(自身を含む): 47436840

約数和(自身を除く): 26405514

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 197, 394, 591, 659, 1182, 1318, 1773, 1977, 3546, 3954, 5319, 5931, 10638, 11862, 15957, 17793, 31914, 35586, 53379, 106758, 129823, 259646, 389469, 778938, 1168407, 2336814, 3505221, 7010442, 10515663, 21031326]

約数ペア:

[(1, 21031326), (2, 10515663), (3, 7010442), (6, 3505221), (9, 2336814), (18, 1168407), (27, 778938), (54, 389469), (81, 259646), (162, 129823), (197, 106758), (394, 53379), (591, 35586), (659, 31914), (1182, 17793), (1318, 15957), (1773, 11862), (1977, 10638), (3546, 5931), (3954, 5319)]