21749072

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{2467}}^1$

素因数の和:2523

約数の個数: 40

約数和(自身を含む): 45904800

約数和(自身を除く): 24155728

約数列:

[1, 2, 4, 8, 16, 19, 29, 38, 58, 76, 116, 152, 232, 304, 464, 551, 1102, 2204, 2467, 4408, 4934, 8816, 9868, 19736, 39472, 46873, 71543, 93746, 143086, 187492, 286172, 374984, 572344, 749968, 1144688, 1359317, 2718634, 5437268, 10874536, 21749072]

約数ペア:

[(1, 21749072), (2, 10874536), (4, 5437268), (8, 2718634), (16, 1359317), (19, 1144688), (29, 749968), (38, 572344), (58, 374984), (76, 286172), (116, 187492), (152, 143086), (232, 93746), (304, 71543), (464, 46873), (551, 39472), (1102, 19736), (2204, 9868), (2467, 8816), (4408, 4934)]