19745132

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 39916800

約数和(自身を除く): 20171668

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 109, 179, 218, 253, 358, 436, 506, 716, 1012, 1199, 1969, 2398, 2507, 3938, 4117, 4796, 5014, 7876, 8234, 10028, 16468, 19511, 27577, 39022, 45287, 55154, 78044, 90574, 110308, 181148, 214621, 429242, 448753, 858484, 897506, 1795012, 4936283, 9872566, 19745132]

約数ペア:

[(1, 19745132), (2, 9872566), (4, 4936283), (11, 1795012), (22, 897506), (23, 858484), (44, 448753), (46, 429242), (92, 214621), (109, 181148), (179, 110308), (218, 90574), (253, 78044), (358, 55154), (436, 45287), (506, 39022), (716, 27577), (1012, 19511), (1199, 16468), (1969, 10028), (2398, 8234), (2507, 7876), (3938, 5014), (4117, 4796)]