18684756

素因数分解:

$2^2\times 3^5\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 50144640

約数和(自身を除く): 31459884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 47, 54, 81, 94, 108, 141, 162, 188, 243, 282, 324, 409, 423, 486, 564, 818, 846, 972, 1227, 1269, 1636, 1692, 2454, 2538, 3681, 3807, 4908, 5076, 7362, 7614, 11043, 11421, 14724, 15228, 19223, 22086, 22842, 33129, 38446, 44172, 45684, 57669, 66258, 76892, 99387, 115338, 132516, 173007, 198774, 230676, 346014, 397548, 519021, 692028, 1038042, 1557063, 2076084, 3114126, 4671189, 6228252, 9342378, 18684756]

約数ペア:

[(1, 18684756), (2, 9342378), (3, 6228252), (4, 4671189), (6, 3114126), (9, 2076084), (12, 1557063), (18, 1038042), (27, 692028), (36, 519021), (47, 397548), (54, 346014), (81, 230676), (94, 198774), (108, 173007), (141, 132516), (162, 115338), (188, 99387), (243, 76892), (282, 66258), (324, 57669), (409, 45684), (423, 44172), (486, 38446), (564, 33129), (818, 22842), (846, 22086), (972, 19223), (1227, 15228), (1269, 14724), (1636, 11421), (1692, 11043), (2454, 7614), (2538, 7362), (3681, 5076), (3807, 4908)]