21530678403

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{157}}^1\times {\mathrm{1693}}^1$

素因数の和:1964

約数の個数: 64

約数和(自身を含む): 32615002112

約数和(自身を除く): 11084323709

約数列:

[1, 3, 13, 31, 39, 67, 93, 157, 201, 403, 471, 871, 1209, 1693, 2041, 2077, 2613, 4867, 5079, 6123, 6231, 10519, 14601, 22009, 27001, 31557, 52483, 63271, 66027, 81003, 113431, 136747, 157449, 189813, 265801, 326089, 340293, 410241, 682279, 797403, 978267, 1474603, 2046837, 3455413, 3516361, 4239157, 4423809, 8239831, 10366239, 10549083, 12717471, 17808667, 24719493, 45712693, 53426001, 107117803, 137138079, 231512671, 321353409, 552068677, 694538013, 1656206031, 7176892801, 21530678403]

約数ペア:

[(1, 21530678403), (3, 7176892801), (13, 1656206031), (31, 694538013), (39, 552068677), (67, 321353409), (93, 231512671), (157, 137138079), (201, 107117803), (403, 53426001), (471, 45712693), (871, 24719493), (1209, 17808667), (1693, 12717471), (2041, 10549083), (2077, 10366239), (2613, 8239831), (4867, 4423809), (5079, 4239157), (6123, 3516361), (6231, 3455413), (10519, 2046837), (14601, 1474603), (22009, 978267), (27001, 797403), (31557, 682279), (52483, 410241), (63271, 340293), (66027, 326089), (81003, 265801), (113431, 189813), (136747, 157449)]