20877654

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 28764330

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 53, 83, 106, 113, 159, 166, 226, 249, 318, 339, 371, 498, 581, 678, 742, 791, 1113, 1162, 1582, 1743, 2226, 2373, 3486, 4399, 4746, 5989, 8798, 9379, 11978, 13197, 17967, 18758, 26394, 28137, 30793, 35934, 41923, 56274, 61586, 65653, 83846, 92379, 125769, 131306, 184758, 196959, 251538, 393918, 497087, 994174, 1491261, 2982522, 3479609, 6959218, 10438827, 20877654]

約数ペア:

[(1, 20877654), (2, 10438827), (3, 6959218), (6, 3479609), (7, 2982522), (14, 1491261), (21, 994174), (42, 497087), (53, 393918), (83, 251538), (106, 196959), (113, 184758), (159, 131306), (166, 125769), (226, 92379), (249, 83846), (318, 65653), (339, 61586), (371, 56274), (498, 41923), (581, 35934), (678, 30793), (742, 28137), (791, 26394), (1113, 18758), (1162, 17967), (1582, 13197), (1743, 11978), (2226, 9379), (2373, 8798), (3486, 5989), (4399, 4746)]