20919888

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:353

約数の個数: 120

約数和(自身を含む): 65460096

約数和(自身を除く): 44540208

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 47, 48, 66, 72, 88, 94, 99, 132, 141, 144, 176, 188, 198, 264, 281, 282, 376, 396, 423, 517, 528, 562, 564, 752, 792, 843, 846, 1034, 1124, 1128, 1551, 1584, 1686, 1692, 2068, 2248, 2256, 2529, 3091, 3102, 3372, 3384, 4136, 4496, 4653, 5058, 6182, 6204, 6744, 6768, 8272, 9273, 9306, 10116, 12364, 12408, 13207, 13488, 18546, 18612, 20232, 24728, 24816, 26414, 27819, 37092, 37224, 39621, 40464, 49456, 52828, 55638, 74184, 74448, 79242, 105656, 111276, 118863, 145277, 148368, 158484, 211312, 222552, 237726, 290554, 316968, 435831, 445104, 475452, 581108, 633936, 871662, 950904, 1162216, 1307493, 1743324, 1901808, 2324432, 2614986, 3486648, 5229972, 6973296, 10459944, 20919888]

約数ペア:

[(1, 20919888), (2, 10459944), (3, 6973296), (4, 5229972), (6, 3486648), (8, 2614986), (9, 2324432), (11, 1901808), (12, 1743324), (16, 1307493), (18, 1162216), (22, 950904), (24, 871662), (33, 633936), (36, 581108), (44, 475452), (47, 445104), (48, 435831), (66, 316968), (72, 290554), (88, 237726), (94, 222552), (99, 211312), (132, 158484), (141, 148368), (144, 145277), (176, 118863), (188, 111276), (198, 105656), (264, 79242), (281, 74448), (282, 74184), (376, 55638), (396, 52828), (423, 49456), (517, 40464), (528, 39621), (562, 37224), (564, 37092), (752, 27819), (792, 26414), (843, 24816), (846, 24728), (1034, 20232), (1124, 18612), (1128, 18546), (1551, 13488), (1584, 13207), (1686, 12408), (1692, 12364), (2068, 10116), (2248, 9306), (2256, 9273), (2529, 8272), (3091, 6768), (3102, 6744), (3372, 6204), (3384, 6182), (4136, 5058), (4496, 4653)]