21976388

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 46838400

約数和(自身を除く): 24862012

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 101, 133, 202, 266, 404, 409, 532, 707, 818, 1414, 1636, 1919, 2828, 2863, 3838, 5726, 7676, 7771, 11452, 13433, 15542, 26866, 31084, 41309, 53732, 54397, 82618, 108794, 165236, 217588, 289163, 578326, 784871, 1156652, 1569742, 3139484, 5494097, 10988194, 21976388]

約数ペア:

[(1, 21976388), (2, 10988194), (4, 5494097), (7, 3139484), (14, 1569742), (19, 1156652), (28, 784871), (38, 578326), (76, 289163), (101, 217588), (133, 165236), (202, 108794), (266, 82618), (404, 54397), (409, 53732), (532, 41309), (707, 31084), (818, 26866), (1414, 15542), (1636, 13433), (1919, 11452), (2828, 7771), (2863, 7676), (3838, 5726)]