20993632

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:156

約数の個数: 96

約数和(自身を含む): 49230720

約数和(自身を除く): 28237088

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 43, 44, 73, 76, 86, 88, 146, 152, 172, 176, 209, 292, 304, 344, 352, 418, 473, 584, 608, 688, 803, 817, 836, 946, 1168, 1376, 1387, 1606, 1634, 1672, 1892, 2336, 2774, 3139, 3212, 3268, 3344, 3784, 5548, 6278, 6424, 6536, 6688, 7568, 8987, 11096, 12556, 12848, 13072, 15136, 15257, 17974, 22192, 25112, 25696, 26144, 30514, 34529, 35948, 44384, 50224, 59641, 61028, 69058, 71896, 100448, 119282, 122056, 138116, 143792, 238564, 244112, 276232, 287584, 477128, 488224, 552464, 656051, 954256, 1104928, 1312102, 1908512, 2624204, 5248408, 10496816, 20993632]

約数ペア:

[(1, 20993632), (2, 10496816), (4, 5248408), (8, 2624204), (11, 1908512), (16, 1312102), (19, 1104928), (22, 954256), (32, 656051), (38, 552464), (43, 488224), (44, 477128), (73, 287584), (76, 276232), (86, 244112), (88, 238564), (146, 143792), (152, 138116), (172, 122056), (176, 119282), (209, 100448), (292, 71896), (304, 69058), (344, 61028), (352, 59641), (418, 50224), (473, 44384), (584, 35948), (608, 34529), (688, 30514), (803, 26144), (817, 25696), (836, 25112), (946, 22192), (1168, 17974), (1376, 15257), (1387, 15136), (1606, 13072), (1634, 12848), (1672, 12556), (1892, 11096), (2336, 8987), (2774, 7568), (3139, 6688), (3212, 6536), (3268, 6424), (3344, 6278), (3784, 5548)]