21712096

素因数分解:

$2^5\times 7^2\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:312

約数の個数: 72

約数和(自身を含む): 50762376

約数和(自身を除く): 29050280

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 61, 98, 112, 122, 196, 224, 227, 244, 392, 427, 454, 488, 784, 854, 908, 976, 1568, 1589, 1708, 1816, 1952, 2989, 3178, 3416, 3632, 5978, 6356, 6832, 7264, 11123, 11956, 12712, 13664, 13847, 22246, 23912, 25424, 27694, 44492, 47824, 50848, 55388, 88984, 95648, 96929, 110776, 177968, 193858, 221552, 355936, 387716, 443104, 678503, 775432, 1357006, 1550864, 2714012, 3101728, 5428024, 10856048, 21712096]

約数ペア:

[(1, 21712096), (2, 10856048), (4, 5428024), (7, 3101728), (8, 2714012), (14, 1550864), (16, 1357006), (28, 775432), (32, 678503), (49, 443104), (56, 387716), (61, 355936), (98, 221552), (112, 193858), (122, 177968), (196, 110776), (224, 96929), (227, 95648), (244, 88984), (392, 55388), (427, 50848), (454, 47824), (488, 44492), (784, 27694), (854, 25424), (908, 23912), (976, 22246), (1568, 13847), (1589, 13664), (1708, 12712), (1816, 11956), (1952, 11123), (2989, 7264), (3178, 6832), (3416, 6356), (3632, 5978)]