19401965

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{5783}}^1$

素因数の和:5860

約数の個数: 16

約数和(自身を含む): 25819776

約数和(自身を除く): 6417811

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 5783, 28915, 63613, 318065, 352763, 1763815, 3880393, 19401965]

約数ペア:

[(1, 19401965), (5, 3880393), (11, 1763815), (55, 352763), (61, 318065), (305, 63613), (671, 28915), (3355, 5783)]