20650266

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1801}}^1$

素因数の和:1836

約数の個数: 72

約数和(自身を含む): 56081844

約数和(自身を除く): 35431578

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 49, 63, 78, 91, 98, 117, 126, 147, 182, 234, 273, 294, 441, 546, 637, 819, 882, 1274, 1638, 1801, 1911, 3602, 3822, 5403, 5733, 10806, 11466, 12607, 16209, 23413, 25214, 32418, 37821, 46826, 70239, 75642, 88249, 113463, 140478, 163891, 176498, 210717, 226926, 264747, 327782, 421434, 491673, 529494, 794241, 983346, 1147237, 1475019, 1588482, 2294474, 2950038, 3441711, 6883422, 10325133, 20650266]

約数ペア:

[(1, 20650266), (2, 10325133), (3, 6883422), (6, 3441711), (7, 2950038), (9, 2294474), (13, 1588482), (14, 1475019), (18, 1147237), (21, 983346), (26, 794241), (39, 529494), (42, 491673), (49, 421434), (63, 327782), (78, 264747), (91, 226926), (98, 210717), (117, 176498), (126, 163891), (147, 140478), (182, 113463), (234, 88249), (273, 75642), (294, 70239), (441, 46826), (546, 37821), (637, 32418), (819, 25214), (882, 23413), (1274, 16209), (1638, 12607), (1801, 11466), (1911, 10806), (3602, 5733), (3822, 5403)]