21372336

素因数分解:

$2^4\times 3^5\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:285

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 43623504

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 36, 46, 48, 54, 69, 72, 81, 92, 108, 138, 144, 162, 184, 207, 216, 239, 243, 276, 324, 368, 414, 432, 478, 486, 552, 621, 648, 717, 828, 956, 972, 1104, 1242, 1296, 1434, 1656, 1863, 1912, 1944, 2151, 2484, 2868, 3312, 3726, 3824, 3888, 4302, 4968, 5497, 5589, 5736, 6453, 7452, 8604, 9936, 10994, 11178, 11472, 12906, 14904, 16491, 17208, 19359, 21988, 22356, 25812, 29808, 32982, 34416, 38718, 43976, 44712, 49473, 51624, 58077, 65964, 77436, 87952, 89424, 98946, 103248, 116154, 131928, 148419, 154872, 197892, 232308, 263856, 296838, 309744, 395784, 445257, 464616, 593676, 791568, 890514, 929232, 1187352, 1335771, 1781028, 2374704, 2671542, 3562056, 5343084, 7124112, 10686168, 21372336]

約数ペア:

[(1, 21372336), (2, 10686168), (3, 7124112), (4, 5343084), (6, 3562056), (8, 2671542), (9, 2374704), (12, 1781028), (16, 1335771), (18, 1187352), (23, 929232), (24, 890514), (27, 791568), (36, 593676), (46, 464616), (48, 445257), (54, 395784), (69, 309744), (72, 296838), (81, 263856), (92, 232308), (108, 197892), (138, 154872), (144, 148419), (162, 131928), (184, 116154), (207, 103248), (216, 98946), (239, 89424), (243, 87952), (276, 77436), (324, 65964), (368, 58077), (414, 51624), (432, 49473), (478, 44712), (486, 43976), (552, 38718), (621, 34416), (648, 32982), (717, 29808), (828, 25812), (956, 22356), (972, 21988), (1104, 19359), (1242, 17208), (1296, 16491), (1434, 14904), (1656, 12906), (1863, 11472), (1912, 11178), (1944, 10994), (2151, 9936), (2484, 8604), (2868, 7452), (3312, 6453), (3726, 5736), (3824, 5589), (3888, 5497), (4302, 4968)]