21762279

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1013}}^1$

素因数の和:1068

約数の個数: 48

約数和(自身を含む): 40495104

約数和(自身を除く): 18732825

約数列:

[1, 3, 7, 9, 11, 21, 31, 33, 63, 77, 93, 99, 217, 231, 279, 341, 651, 693, 1013, 1023, 1953, 2387, 3039, 3069, 7091, 7161, 9117, 11143, 21273, 21483, 31403, 33429, 63819, 78001, 94209, 100287, 219821, 234003, 282627, 345433, 659463, 702009, 1036299, 1978389, 2418031, 3108897, 7254093, 21762279]

約数ペア:

[(1, 21762279), (3, 7254093), (7, 3108897), (9, 2418031), (11, 1978389), (21, 1036299), (31, 702009), (33, 659463), (63, 345433), (77, 282627), (93, 234003), (99, 219821), (217, 100287), (231, 94209), (279, 78001), (341, 63819), (651, 33429), (693, 31403), (1013, 21483), (1023, 21273), (1953, 11143), (2387, 9117), (3039, 7161), (3069, 7091)]