20919486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:465

約数の個数: 64

約数和(自身を含む): 51383808

約数和(自身を除く): 30464322

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 51, 83, 102, 119, 166, 238, 249, 353, 357, 498, 581, 706, 714, 1059, 1162, 1411, 1743, 2118, 2471, 2822, 3486, 4233, 4942, 6001, 7413, 8466, 9877, 12002, 14826, 18003, 19754, 29299, 29631, 36006, 42007, 58598, 59262, 84014, 87897, 126021, 175794, 205093, 252042, 410186, 498083, 615279, 996166, 1230558, 1494249, 2988498, 3486581, 6973162, 10459743, 20919486]

約数ペア:

[(1, 20919486), (2, 10459743), (3, 6973162), (6, 3486581), (7, 2988498), (14, 1494249), (17, 1230558), (21, 996166), (34, 615279), (42, 498083), (51, 410186), (83, 252042), (102, 205093), (119, 175794), (166, 126021), (238, 87897), (249, 84014), (353, 59262), (357, 58598), (498, 42007), (581, 36006), (706, 29631), (714, 29299), (1059, 19754), (1162, 18003), (1411, 14826), (1743, 12002), (2118, 9877), (2471, 8466), (2822, 7413), (3486, 6001), (4233, 4942)]