20839842

素因数分解:

$2^1\times 3^4\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:864

約数の個数: 40

約数和(自身を含む): 47005596

約数和(自身を除く): 26165754

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 197, 394, 591, 653, 1182, 1306, 1773, 1959, 3546, 3918, 5319, 5877, 10638, 11754, 15957, 17631, 31914, 35262, 52893, 105786, 128641, 257282, 385923, 771846, 1157769, 2315538, 3473307, 6946614, 10419921, 20839842]

約数ペア:

[(1, 20839842), (2, 10419921), (3, 6946614), (6, 3473307), (9, 2315538), (18, 1157769), (27, 771846), (54, 385923), (81, 257282), (162, 128641), (197, 105786), (394, 52893), (591, 35262), (653, 31914), (1182, 17631), (1306, 15957), (1773, 11754), (1959, 10638), (3546, 5877), (3918, 5319)]