21013696

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1571}}^1$

素因数の和:1613

約数の個数: 56

約数和(自身を含む): 47914560

約数和(自身を除く): 26900864

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 152, 176, 209, 304, 352, 418, 608, 704, 836, 1216, 1571, 1672, 3142, 3344, 6284, 6688, 12568, 13376, 17281, 25136, 29849, 34562, 50272, 59698, 69124, 100544, 119396, 138248, 238792, 276496, 328339, 477584, 552992, 656678, 955168, 1105984, 1313356, 1910336, 2626712, 5253424, 10506848, 21013696]

約数ペア:

[(1, 21013696), (2, 10506848), (4, 5253424), (8, 2626712), (11, 1910336), (16, 1313356), (19, 1105984), (22, 955168), (32, 656678), (38, 552992), (44, 477584), (64, 328339), (76, 276496), (88, 238792), (152, 138248), (176, 119396), (209, 100544), (304, 69124), (352, 59698), (418, 50272), (608, 34562), (704, 29849), (836, 25136), (1216, 17281), (1571, 13376), (1672, 12568), (3142, 6688), (3344, 6284)]