20655698

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:175

約数の個数: 48

約数和(自身を含む): 38551104

約数和(自身を除く): 17895406

約数列:

[1, 2, 7, 14, 19, 38, 61, 67, 122, 133, 134, 266, 361, 427, 469, 722, 854, 938, 1159, 1273, 2318, 2527, 2546, 4087, 5054, 8113, 8174, 8911, 16226, 17822, 22021, 24187, 28609, 44042, 48374, 57218, 77653, 154147, 155306, 169309, 308294, 338618, 543571, 1087142, 1475407, 2950814, 10327849, 20655698]

約数ペア:

[(1, 20655698), (2, 10327849), (7, 2950814), (14, 1475407), (19, 1087142), (38, 543571), (61, 338618), (67, 308294), (122, 169309), (133, 155306), (134, 154147), (266, 77653), (361, 57218), (427, 48374), (469, 44042), (722, 28609), (854, 24187), (938, 22021), (1159, 17822), (1273, 16226), (2318, 8911), (2527, 8174), (2546, 8113), (4087, 5054)]