21655410

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1021}}^1$

素因数の和:1139

約数の個数: 64

約数和(自身を含む): 60044544

約数和(自身を除く): 38389134

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 101, 105, 202, 210, 303, 505, 606, 707, 1010, 1021, 1414, 1515, 2042, 2121, 3030, 3063, 3535, 4242, 5105, 6126, 7070, 7147, 10210, 10605, 14294, 15315, 21210, 21441, 30630, 35735, 42882, 71470, 103121, 107205, 206242, 214410, 309363, 515605, 618726, 721847, 1031210, 1443694, 1546815, 2165541, 3093630, 3609235, 4331082, 7218470, 10827705, 21655410]

約数ペア:

[(1, 21655410), (2, 10827705), (3, 7218470), (5, 4331082), (6, 3609235), (7, 3093630), (10, 2165541), (14, 1546815), (15, 1443694), (21, 1031210), (30, 721847), (35, 618726), (42, 515605), (70, 309363), (101, 214410), (105, 206242), (202, 107205), (210, 103121), (303, 71470), (505, 42882), (606, 35735), (707, 30630), (1010, 21441), (1021, 21210), (1414, 15315), (1515, 14294), (2042, 10605), (2121, 10210), (3030, 7147), (3063, 7070), (3535, 6126), (4242, 5105)]