21226023

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 18448857

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 53, 63, 91, 117, 159, 163, 189, 273, 351, 371, 477, 489, 689, 819, 1113, 1141, 1431, 1467, 2067, 2119, 2457, 3339, 3423, 4401, 4823, 6201, 6357, 8639, 10017, 10269, 14469, 14833, 18603, 19071, 25917, 30807, 43407, 44499, 57213, 60473, 77751, 112307, 130221, 133497, 181419, 233253, 336921, 400491, 544257, 786149, 1010763, 1632771, 2358447, 3032289, 7075341, 21226023]

約数ペア:

[(1, 21226023), (3, 7075341), (7, 3032289), (9, 2358447), (13, 1632771), (21, 1010763), (27, 786149), (39, 544257), (53, 400491), (63, 336921), (91, 233253), (117, 181419), (159, 133497), (163, 130221), (189, 112307), (273, 77751), (351, 60473), (371, 57213), (477, 44499), (489, 43407), (689, 30807), (819, 25917), (1113, 19071), (1141, 18603), (1431, 14833), (1467, 14469), (2067, 10269), (2119, 10017), (2457, 8639), (3339, 6357), (3423, 6201), (4401, 4823)]