20884838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 36099840

約数和(自身を除く): 15215002

約数列:

[1, 2, 13, 19, 26, 38, 67, 134, 247, 494, 631, 871, 1262, 1273, 1742, 2546, 8203, 11989, 16406, 16549, 23978, 33098, 42277, 84554, 155857, 311714, 549601, 803263, 1099202, 1606526, 10442419, 20884838]

約数ペア:

[(1, 20884838), (2, 10442419), (13, 1606526), (19, 1099202), (26, 803263), (38, 549601), (67, 311714), (134, 155857), (247, 84554), (494, 42277), (631, 33098), (871, 23978), (1262, 16549), (1273, 16406), (1742, 11989), (2546, 8203)]