21291858

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5827}}^1$

素因数の和:5871

約数の個数: 48

約数和(自身を含む): 54550080

約数和(自身を除く): 33258222

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 522, 609, 1218, 1827, 3654, 5827, 11654, 17481, 34962, 40789, 52443, 81578, 104886, 122367, 168983, 244734, 337966, 367101, 506949, 734202, 1013898, 1182881, 1520847, 2365762, 3041694, 3548643, 7097286, 10645929, 21291858]

約数ペア:

[(1, 21291858), (2, 10645929), (3, 7097286), (6, 3548643), (7, 3041694), (9, 2365762), (14, 1520847), (18, 1182881), (21, 1013898), (29, 734202), (42, 506949), (58, 367101), (63, 337966), (87, 244734), (126, 168983), (174, 122367), (203, 104886), (261, 81578), (406, 52443), (522, 40789), (609, 34962), (1218, 17481), (1827, 11654), (3654, 5827)]