20898304

素因数分解:

$2^9\times 7^4\times {\mathrm{17}}^1$

素因数の和:63

約数の個数: 100

約数和(自身を含む): 51577614

約数和(自身を除く): 30679310

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 98, 112, 119, 128, 136, 196, 224, 238, 256, 272, 343, 392, 448, 476, 512, 544, 686, 784, 833, 896, 952, 1088, 1372, 1568, 1666, 1792, 1904, 2176, 2401, 2744, 3136, 3332, 3584, 3808, 4352, 4802, 5488, 5831, 6272, 6664, 7616, 8704, 9604, 10976, 11662, 12544, 13328, 15232, 19208, 21952, 23324, 25088, 26656, 30464, 38416, 40817, 43904, 46648, 53312, 60928, 76832, 81634, 87808, 93296, 106624, 153664, 163268, 175616, 186592, 213248, 307328, 326536, 373184, 426496, 614656, 653072, 746368, 1229312, 1306144, 1492736, 2612288, 2985472, 5224576, 10449152, 20898304]

約数ペア:

[(1, 20898304), (2, 10449152), (4, 5224576), (7, 2985472), (8, 2612288), (14, 1492736), (16, 1306144), (17, 1229312), (28, 746368), (32, 653072), (34, 614656), (49, 426496), (56, 373184), (64, 326536), (68, 307328), (98, 213248), (112, 186592), (119, 175616), (128, 163268), (136, 153664), (196, 106624), (224, 93296), (238, 87808), (256, 81634), (272, 76832), (343, 60928), (392, 53312), (448, 46648), (476, 43904), (512, 40817), (544, 38416), (686, 30464), (784, 26656), (833, 25088), (896, 23324), (952, 21952), (1088, 19208), (1372, 15232), (1568, 13328), (1666, 12544), (1792, 11662), (1904, 10976), (2176, 9604), (2401, 8704), (2744, 7616), (3136, 6664), (3332, 6272), (3584, 5831), (3808, 5488), (4352, 4802)]