20423214

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{449}}^1$

素因数の和:502

約数の個数: 72

約数和(自身を含む): 53492400

約数和(自身を除く): 33069186

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 361, 399, 449, 722, 798, 898, 1083, 1197, 1347, 2166, 2394, 2527, 2694, 3143, 3249, 4041, 5054, 6286, 6498, 7581, 8082, 8531, 9429, 15162, 17062, 18858, 22743, 25593, 28287, 45486, 51186, 56574, 59717, 76779, 119434, 153558, 162089, 179151, 324178, 358302, 486267, 537453, 972534, 1074906, 1134623, 1458801, 2269246, 2917602, 3403869, 6807738, 10211607, 20423214]

約数ペア:

[(1, 20423214), (2, 10211607), (3, 6807738), (6, 3403869), (7, 2917602), (9, 2269246), (14, 1458801), (18, 1134623), (19, 1074906), (21, 972534), (38, 537453), (42, 486267), (57, 358302), (63, 324178), (114, 179151), (126, 162089), (133, 153558), (171, 119434), (266, 76779), (342, 59717), (361, 56574), (399, 51186), (449, 45486), (722, 28287), (798, 25593), (898, 22743), (1083, 18858), (1197, 17062), (1347, 15162), (2166, 9429), (2394, 8531), (2527, 8082), (2694, 7581), (3143, 6498), (3249, 6286), (4041, 5054)]