20556534

素因数分解:

$2^1\times 3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 45527040

約数和(自身を除く): 24970506

約数列:

[1, 2, 3, 6, 29, 31, 37, 58, 62, 74, 87, 93, 103, 111, 174, 186, 206, 222, 309, 618, 899, 1073, 1147, 1798, 2146, 2294, 2697, 2987, 3193, 3219, 3441, 3811, 5394, 5974, 6386, 6438, 6882, 7622, 8961, 9579, 11433, 17922, 19158, 22866, 33263, 66526, 92597, 99789, 110519, 118141, 185194, 199578, 221038, 236282, 277791, 331557, 354423, 555582, 663114, 708846, 3426089, 6852178, 10278267, 20556534]

約数ペア:

[(1, 20556534), (2, 10278267), (3, 6852178), (6, 3426089), (29, 708846), (31, 663114), (37, 555582), (58, 354423), (62, 331557), (74, 277791), (87, 236282), (93, 221038), (103, 199578), (111, 185194), (174, 118141), (186, 110519), (206, 99789), (222, 92597), (309, 66526), (618, 33263), (899, 22866), (1073, 19158), (1147, 17922), (1798, 11433), (2146, 9579), (2294, 8961), (2697, 7622), (2987, 6882), (3193, 6438), (3219, 6386), (3441, 5974), (3811, 5394)]