20891376

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^3\times {\mathrm{109}}^1$

素因数の和:156

約数の個数: 120

約数和(自身を含む): 64899120

約数和(自身を除く): 44007744

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 72, 88, 99, 109, 121, 132, 144, 176, 198, 218, 242, 264, 327, 363, 396, 436, 484, 528, 654, 726, 792, 872, 968, 981, 1089, 1199, 1308, 1331, 1452, 1584, 1744, 1936, 1962, 2178, 2398, 2616, 2662, 2904, 3597, 3924, 3993, 4356, 4796, 5232, 5324, 5808, 7194, 7848, 7986, 8712, 9592, 10648, 10791, 11979, 13189, 14388, 15696, 15972, 17424, 19184, 21296, 21582, 23958, 26378, 28776, 31944, 39567, 43164, 47916, 52756, 57552, 63888, 79134, 86328, 95832, 105512, 118701, 145079, 158268, 172656, 191664, 211024, 237402, 290158, 316536, 435237, 474804, 580316, 633072, 870474, 949608, 1160632, 1305711, 1740948, 1899216, 2321264, 2611422, 3481896, 5222844, 6963792, 10445688, 20891376]

約数ペア:

[(1, 20891376), (2, 10445688), (3, 6963792), (4, 5222844), (6, 3481896), (8, 2611422), (9, 2321264), (11, 1899216), (12, 1740948), (16, 1305711), (18, 1160632), (22, 949608), (24, 870474), (33, 633072), (36, 580316), (44, 474804), (48, 435237), (66, 316536), (72, 290158), (88, 237402), (99, 211024), (109, 191664), (121, 172656), (132, 158268), (144, 145079), (176, 118701), (198, 105512), (218, 95832), (242, 86328), (264, 79134), (327, 63888), (363, 57552), (396, 52756), (436, 47916), (484, 43164), (528, 39567), (654, 31944), (726, 28776), (792, 26378), (872, 23958), (968, 21582), (981, 21296), (1089, 19184), (1199, 17424), (1308, 15972), (1331, 15696), (1452, 14388), (1584, 13189), (1744, 11979), (1936, 10791), (1962, 10648), (2178, 9592), (2398, 8712), (2616, 7986), (2662, 7848), (2904, 7194), (3597, 5808), (3924, 5324), (3993, 5232), (4356, 4796)]