21000658208

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{1567}}^1$

素因数の和:1870

約数の個数: 96

約数和(自身を含む): 43812679680

約数和(自身を除く): 22812021472

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 131, 139, 184, 262, 278, 368, 524, 556, 736, 1048, 1112, 1567, 2096, 2224, 3013, 3134, 3197, 4192, 4448, 6026, 6268, 6394, 12052, 12536, 12788, 18209, 24104, 25072, 25576, 36041, 36418, 48208, 50144, 51152, 72082, 72836, 96416, 102304, 144164, 145672, 205277, 217813, 288328, 291344, 410554, 418807, 435626, 576656, 582688, 821108, 837614, 871252, 1153312, 1642216, 1675228, 1742504, 3284432, 3350456, 3485008, 4721371, 5009699, 6568864, 6700912, 6970016, 9442742, 10019398, 13401824, 18885484, 20038796, 28533503, 37770968, 40077592, 57067006, 75541936, 80155184, 114134012, 151083872, 160310368, 228268024, 456536048, 656270569, 913072096, 1312541138, 2625082276, 5250164552, 10500329104, 21000658208]

約数ペア:

[(1, 21000658208), (2, 10500329104), (4, 5250164552), (8, 2625082276), (16, 1312541138), (23, 913072096), (32, 656270569), (46, 456536048), (92, 228268024), (131, 160310368), (139, 151083872), (184, 114134012), (262, 80155184), (278, 75541936), (368, 57067006), (524, 40077592), (556, 37770968), (736, 28533503), (1048, 20038796), (1112, 18885484), (1567, 13401824), (2096, 10019398), (2224, 9442742), (3013, 6970016), (3134, 6700912), (3197, 6568864), (4192, 5009699), (4448, 4721371), (6026, 3485008), (6268, 3350456), (6394, 3284432), (12052, 1742504), (12536, 1675228), (12788, 1642216), (18209, 1153312), (24104, 871252), (25072, 837614), (25576, 821108), (36041, 582688), (36418, 576656), (48208, 435626), (50144, 418807), (51152, 410554), (72082, 291344), (72836, 288328), (96416, 217813), (102304, 205277), (144164, 145672)]