21973160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49939}}^1$

素因数の和:49961

約数の個数: 32

約数和(自身を含む): 53935200

約数和(自身を除く): 31962040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49939, 99878, 199756, 249695, 399512, 499390, 549329, 998780, 1098658, 1997560, 2197316, 2746645, 4394632, 5493290, 10986580, 21973160]

約数ペア:

[(1, 21973160), (2, 10986580), (4, 5493290), (5, 4394632), (8, 2746645), (10, 2197316), (11, 1997560), (20, 1098658), (22, 998780), (40, 549329), (44, 499390), (55, 399512), (88, 249695), (110, 199756), (220, 99878), (440, 49939)]