21064498

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 48

約数和(自身を含む): 40582080

約数和(自身を除く): 19517582

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 169, 182, 203, 307, 338, 377, 406, 614, 754, 1183, 2149, 2366, 2639, 3991, 4298, 4901, 5278, 7982, 8903, 9802, 17806, 27937, 34307, 51883, 55874, 62321, 68614, 103766, 115739, 124642, 231478, 363181, 726362, 810173, 1504607, 1620346, 3009214, 10532249, 21064498]

約数ペア:

[(1, 21064498), (2, 10532249), (7, 3009214), (13, 1620346), (14, 1504607), (26, 810173), (29, 726362), (58, 363181), (91, 231478), (169, 124642), (182, 115739), (203, 103766), (307, 68614), (338, 62321), (377, 55874), (406, 51883), (614, 34307), (754, 27937), (1183, 17806), (2149, 9802), (2366, 8903), (2639, 7982), (3991, 5278), (4298, 4901)]