21491536

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{653}}^1$

素因数の和:700

約数の個数: 60

約数和(自身を含む): 48535956

約数和(自身を除く): 27044420

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 121, 136, 176, 187, 242, 272, 374, 484, 653, 748, 968, 1306, 1496, 1936, 2057, 2612, 2992, 4114, 5224, 7183, 8228, 10448, 11101, 14366, 16456, 22202, 28732, 32912, 44404, 57464, 79013, 88808, 114928, 122111, 158026, 177616, 244222, 316052, 488444, 632104, 976888, 1264208, 1343221, 1953776, 2686442, 5372884, 10745768, 21491536]

約数ペア:

[(1, 21491536), (2, 10745768), (4, 5372884), (8, 2686442), (11, 1953776), (16, 1343221), (17, 1264208), (22, 976888), (34, 632104), (44, 488444), (68, 316052), (88, 244222), (121, 177616), (136, 158026), (176, 122111), (187, 114928), (242, 88808), (272, 79013), (374, 57464), (484, 44404), (653, 32912), (748, 28732), (968, 22202), (1306, 16456), (1496, 14366), (1936, 11101), (2057, 10448), (2612, 8228), (2992, 7183), (4114, 5224)]