21838136

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{509}}^1$

素因数の和:719

約数の個数: 32

約数和(自身を含む): 42595200

約数和(自身を除く): 20757064

約数列:

[1, 2, 4, 8, 31, 62, 124, 173, 248, 346, 509, 692, 1018, 1384, 2036, 4072, 5363, 10726, 15779, 21452, 31558, 42904, 63116, 88057, 126232, 176114, 352228, 704456, 2729767, 5459534, 10919068, 21838136]

約数ペア:

[(1, 21838136), (2, 10919068), (4, 5459534), (8, 2729767), (31, 704456), (62, 352228), (124, 176114), (173, 126232), (248, 88057), (346, 63116), (509, 42904), (692, 31558), (1018, 21452), (1384, 15779), (2036, 10726), (4072, 5363)]