21984156

素因数分解:

$2^2\times 3^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:192

約数の個数: 96

約数和(自身を含む): 59996160

約数和(自身を除く): 38012004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 47, 54, 61, 71, 94, 108, 122, 141, 142, 183, 188, 213, 244, 282, 284, 366, 423, 426, 549, 564, 639, 732, 846, 852, 1098, 1269, 1278, 1647, 1692, 1917, 2196, 2538, 2556, 2867, 3294, 3337, 3834, 4331, 5076, 5734, 6588, 6674, 7668, 8601, 8662, 10011, 11468, 12993, 13348, 17202, 17324, 20022, 25803, 25986, 30033, 34404, 38979, 40044, 51606, 51972, 60066, 77409, 77958, 90099, 103212, 116937, 120132, 154818, 155916, 180198, 203557, 233874, 309636, 360396, 407114, 467748, 610671, 814228, 1221342, 1832013, 2442684, 3664026, 5496039, 7328052, 10992078, 21984156]

約数ペア:

[(1, 21984156), (2, 10992078), (3, 7328052), (4, 5496039), (6, 3664026), (9, 2442684), (12, 1832013), (18, 1221342), (27, 814228), (36, 610671), (47, 467748), (54, 407114), (61, 360396), (71, 309636), (94, 233874), (108, 203557), (122, 180198), (141, 155916), (142, 154818), (183, 120132), (188, 116937), (213, 103212), (244, 90099), (282, 77958), (284, 77409), (366, 60066), (423, 51972), (426, 51606), (549, 40044), (564, 38979), (639, 34404), (732, 30033), (846, 25986), (852, 25803), (1098, 20022), (1269, 17324), (1278, 17202), (1647, 13348), (1692, 12993), (1917, 11468), (2196, 10011), (2538, 8662), (2556, 8601), (2867, 7668), (3294, 6674), (3337, 6588), (3834, 5734), (4331, 5076)]