19894578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:503

約数の個数: 48

約数和(自身を含む): 44496480

約数和(自身を除く): 24601902

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 67, 121, 134, 201, 242, 363, 402, 409, 726, 737, 818, 1227, 1474, 2211, 2454, 4422, 4499, 8107, 8998, 13497, 16214, 24321, 26994, 27403, 48642, 49489, 54806, 82209, 98978, 148467, 164418, 296934, 301433, 602866, 904299, 1808598, 3315763, 6631526, 9947289, 19894578]

約数ペア:

[(1, 19894578), (2, 9947289), (3, 6631526), (6, 3315763), (11, 1808598), (22, 904299), (33, 602866), (66, 301433), (67, 296934), (121, 164418), (134, 148467), (201, 98978), (242, 82209), (363, 54806), (402, 49489), (409, 48642), (726, 27403), (737, 26994), (818, 24321), (1227, 16214), (1474, 13497), (2211, 8998), (2454, 8107), (4422, 4499)]