17981824

素因数分解:

$2^7\times 7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 96

約数和(自身を含む): 43256160

約数和(自身を除く): 25274336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 47, 49, 56, 61, 64, 94, 98, 112, 122, 128, 188, 196, 224, 244, 329, 376, 392, 427, 448, 488, 658, 752, 784, 854, 896, 976, 1316, 1504, 1568, 1708, 1952, 2303, 2632, 2867, 2989, 3008, 3136, 3416, 3904, 4606, 5264, 5734, 5978, 6016, 6272, 6832, 7808, 9212, 10528, 11468, 11956, 13664, 18424, 20069, 21056, 22936, 23912, 27328, 36848, 40138, 42112, 45872, 47824, 54656, 73696, 80276, 91744, 95648, 140483, 147392, 160552, 183488, 191296, 280966, 294784, 321104, 366976, 382592, 561932, 642208, 1123864, 1284416, 2247728, 2568832, 4495456, 8990912, 17981824]

約数ペア:

[(1, 17981824), (2, 8990912), (4, 4495456), (7, 2568832), (8, 2247728), (14, 1284416), (16, 1123864), (28, 642208), (32, 561932), (47, 382592), (49, 366976), (56, 321104), (61, 294784), (64, 280966), (94, 191296), (98, 183488), (112, 160552), (122, 147392), (128, 140483), (188, 95648), (196, 91744), (224, 80276), (244, 73696), (329, 54656), (376, 47824), (392, 45872), (427, 42112), (448, 40138), (488, 36848), (658, 27328), (752, 23912), (784, 22936), (854, 21056), (896, 20069), (976, 18424), (1316, 13664), (1504, 11956), (1568, 11468), (1708, 10528), (1952, 9212), (2303, 7808), (2632, 6832), (2867, 6272), (2989, 6016), (3008, 5978), (3136, 5734), (3416, 5264), (3904, 4606)]