20836458

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{457}}^1$

素因数の和:631

約数の個数: 48

約数和(自身を含む): 48227400

約数和(自身を除く): 27390942

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 149, 153, 298, 306, 447, 457, 894, 914, 1341, 1371, 2533, 2682, 2742, 4113, 5066, 7599, 7769, 8226, 15198, 15538, 22797, 23307, 45594, 46614, 68093, 69921, 136186, 139842, 204279, 408558, 612837, 1157581, 1225674, 2315162, 3472743, 6945486, 10418229, 20836458]

約数ペア:

[(1, 20836458), (2, 10418229), (3, 6945486), (6, 3472743), (9, 2315162), (17, 1225674), (18, 1157581), (34, 612837), (51, 408558), (102, 204279), (149, 139842), (153, 136186), (298, 69921), (306, 68093), (447, 46614), (457, 45594), (894, 23307), (914, 22797), (1341, 15538), (1371, 15198), (2533, 8226), (2682, 7769), (2742, 7599), (4113, 5066)]