20897712

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:271

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 44098128

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 79, 88, 99, 132, 144, 158, 167, 176, 198, 237, 264, 316, 334, 396, 474, 501, 528, 632, 668, 711, 792, 869, 948, 1002, 1264, 1336, 1422, 1503, 1584, 1738, 1837, 1896, 2004, 2607, 2672, 2844, 3006, 3476, 3674, 3792, 4008, 5214, 5511, 5688, 6012, 6952, 7348, 7821, 8016, 10428, 11022, 11376, 12024, 13193, 13904, 14696, 15642, 16533, 20856, 22044, 24048, 26386, 29392, 31284, 33066, 39579, 41712, 44088, 52772, 62568, 66132, 79158, 88176, 105544, 118737, 125136, 132264, 145123, 158316, 211088, 237474, 264528, 290246, 316632, 435369, 474948, 580492, 633264, 870738, 949896, 1160984, 1306107, 1741476, 1899792, 2321968, 2612214, 3482952, 5224428, 6965904, 10448856, 20897712]

約数ペア:

[(1, 20897712), (2, 10448856), (3, 6965904), (4, 5224428), (6, 3482952), (8, 2612214), (9, 2321968), (11, 1899792), (12, 1741476), (16, 1306107), (18, 1160984), (22, 949896), (24, 870738), (33, 633264), (36, 580492), (44, 474948), (48, 435369), (66, 316632), (72, 290246), (79, 264528), (88, 237474), (99, 211088), (132, 158316), (144, 145123), (158, 132264), (167, 125136), (176, 118737), (198, 105544), (237, 88176), (264, 79158), (316, 66132), (334, 62568), (396, 52772), (474, 44088), (501, 41712), (528, 39579), (632, 33066), (668, 31284), (711, 29392), (792, 26386), (869, 24048), (948, 22044), (1002, 20856), (1264, 16533), (1336, 15642), (1422, 14696), (1503, 13904), (1584, 13193), (1738, 12024), (1837, 11376), (1896, 11022), (2004, 10428), (2607, 8016), (2672, 7821), (2844, 7348), (3006, 6952), (3476, 6012), (3674, 5688), (3792, 5511), (4008, 5214)]