21479468

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{673}}^1$

素因数の和:857

約数の個数: 24

約数和(自身を含む): 38498880

約数和(自身を除く): 17019412

約数列:

[1, 2, 4, 79, 101, 158, 202, 316, 404, 673, 1346, 2692, 7979, 15958, 31916, 53167, 67973, 106334, 135946, 212668, 271892, 5369867, 10739734, 21479468]

約数ペア:

[(1, 21479468), (2, 10739734), (4, 5369867), (79, 271892), (101, 212668), (158, 135946), (202, 106334), (316, 67973), (404, 53167), (673, 31916), (1346, 15958), (2692, 7979)]