21178192

素因数分解:

$2^4\times 7^3\times {\mathrm{17}}^1\times {\mathrm{227}}^1$

素因数の和:273

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 29711408

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 227, 238, 272, 343, 392, 454, 476, 686, 784, 833, 908, 952, 1372, 1589, 1666, 1816, 1904, 2744, 3178, 3332, 3632, 3859, 5488, 5831, 6356, 6664, 7718, 11123, 11662, 12712, 13328, 15436, 22246, 23324, 25424, 27013, 30872, 44492, 46648, 54026, 61744, 77861, 88984, 93296, 108052, 155722, 177968, 189091, 216104, 311444, 378182, 432208, 622888, 756364, 1245776, 1323637, 1512728, 2647274, 3025456, 5294548, 10589096, 21178192]

約数ペア:

[(1, 21178192), (2, 10589096), (4, 5294548), (7, 3025456), (8, 2647274), (14, 1512728), (16, 1323637), (17, 1245776), (28, 756364), (34, 622888), (49, 432208), (56, 378182), (68, 311444), (98, 216104), (112, 189091), (119, 177968), (136, 155722), (196, 108052), (227, 93296), (238, 88984), (272, 77861), (343, 61744), (392, 54026), (454, 46648), (476, 44492), (686, 30872), (784, 27013), (833, 25424), (908, 23324), (952, 22246), (1372, 15436), (1589, 13328), (1666, 12712), (1816, 11662), (1904, 11123), (2744, 7718), (3178, 6664), (3332, 6356), (3632, 5831), (3859, 5488)]