20201643

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:150

約数の個数: 80

約数和(自身を含む): 39029760

約数和(自身を除く): 18828117

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 41, 63, 77, 79, 81, 99, 123, 189, 231, 237, 287, 297, 369, 451, 553, 567, 693, 711, 861, 869, 891, 1107, 1353, 1659, 2079, 2133, 2583, 2607, 3157, 3239, 3321, 4059, 4977, 6083, 6237, 6399, 7749, 7821, 9471, 9717, 12177, 14931, 18249, 22673, 23247, 23463, 28413, 29151, 35629, 36531, 44793, 54747, 68019, 70389, 85239, 87453, 106887, 164241, 204057, 249403, 255717, 262359, 320661, 492723, 612171, 748209, 961983, 1836513, 2244627, 2885949, 6733881, 20201643]

約数ペア:

[(1, 20201643), (3, 6733881), (7, 2885949), (9, 2244627), (11, 1836513), (21, 961983), (27, 748209), (33, 612171), (41, 492723), (63, 320661), (77, 262359), (79, 255717), (81, 249403), (99, 204057), (123, 164241), (189, 106887), (231, 87453), (237, 85239), (287, 70389), (297, 68019), (369, 54747), (451, 44793), (553, 36531), (567, 35629), (693, 29151), (711, 28413), (861, 23463), (869, 23247), (891, 22673), (1107, 18249), (1353, 14931), (1659, 12177), (2079, 9717), (2133, 9471), (2583, 7821), (2607, 7749), (3157, 6399), (3239, 6237), (3321, 6083), (4059, 4977)]