21801472

素因数分解:

$2^9\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1$

素因数の和:122

約数の個数: 120

約数和(自身を含む): 55978560

約数和(自身を除く): 34177088

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 77, 79, 88, 98, 112, 128, 154, 158, 176, 196, 224, 256, 308, 316, 352, 392, 448, 512, 539, 553, 616, 632, 704, 784, 869, 896, 1078, 1106, 1232, 1264, 1408, 1568, 1738, 1792, 2156, 2212, 2464, 2528, 2816, 3136, 3476, 3584, 3871, 4312, 4424, 4928, 5056, 5632, 6083, 6272, 6952, 7742, 8624, 8848, 9856, 10112, 12166, 12544, 13904, 15484, 17248, 17696, 19712, 20224, 24332, 25088, 27808, 30968, 34496, 35392, 39424, 40448, 42581, 48664, 55616, 61936, 68992, 70784, 85162, 97328, 111232, 123872, 137984, 141568, 170324, 194656, 222464, 247744, 275968, 283136, 340648, 389312, 444928, 495488, 681296, 778624, 990976, 1362592, 1557248, 1981952, 2725184, 3114496, 5450368, 10900736, 21801472]

約数ペア:

[(1, 21801472), (2, 10900736), (4, 5450368), (7, 3114496), (8, 2725184), (11, 1981952), (14, 1557248), (16, 1362592), (22, 990976), (28, 778624), (32, 681296), (44, 495488), (49, 444928), (56, 389312), (64, 340648), (77, 283136), (79, 275968), (88, 247744), (98, 222464), (112, 194656), (128, 170324), (154, 141568), (158, 137984), (176, 123872), (196, 111232), (224, 97328), (256, 85162), (308, 70784), (316, 68992), (352, 61936), (392, 55616), (448, 48664), (512, 42581), (539, 40448), (553, 39424), (616, 35392), (632, 34496), (704, 30968), (784, 27808), (869, 25088), (896, 24332), (1078, 20224), (1106, 19712), (1232, 17696), (1264, 17248), (1408, 15484), (1568, 13904), (1738, 12544), (1792, 12166), (2156, 10112), (2212, 9856), (2464, 8848), (2528, 8624), (2816, 7742), (3136, 6952), (3476, 6272), (3584, 6083), (3871, 5632), (4312, 5056), (4424, 4928)]