21871836

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4133}}^1$

素因数の和:4160

約数の個数: 72

約数和(自身を含む): 65978640

約数和(自身を除く): 44106804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4133, 5292, 8266, 12399, 16532, 24798, 28931, 37197, 49596, 57862, 74394, 86793, 111591, 115724, 148788, 173586, 202517, 223182, 260379, 347172, 405034, 446364, 520758, 607551, 781137, 810068, 1041516, 1215102, 1562274, 1822653, 2430204, 3124548, 3645306, 5467959, 7290612, 10935918, 21871836]

約数ペア:

[(1, 21871836), (2, 10935918), (3, 7290612), (4, 5467959), (6, 3645306), (7, 3124548), (9, 2430204), (12, 1822653), (14, 1562274), (18, 1215102), (21, 1041516), (27, 810068), (28, 781137), (36, 607551), (42, 520758), (49, 446364), (54, 405034), (63, 347172), (84, 260379), (98, 223182), (108, 202517), (126, 173586), (147, 148788), (189, 115724), (196, 111591), (252, 86793), (294, 74394), (378, 57862), (441, 49596), (588, 37197), (756, 28931), (882, 24798), (1323, 16532), (1764, 12399), (2646, 8266), (4133, 5292)]