19862271

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 36018528

約数和(自身を除く): 16156257

約数列:

[1, 3, 9, 11, 13, 23, 33, 39, 61, 69, 99, 117, 121, 143, 183, 207, 253, 299, 363, 429, 549, 671, 759, 793, 897, 1089, 1287, 1403, 1573, 2013, 2277, 2379, 2691, 2783, 3289, 4209, 4719, 6039, 7137, 7381, 8349, 8723, 9867, 12627, 14157, 15433, 18239, 22143, 25047, 26169, 29601, 36179, 46299, 54717, 66429, 78507, 95953, 108537, 138897, 164151, 169763, 200629, 287859, 325611, 509289, 601887, 863577, 1527867, 1805661, 2206919, 6620757, 19862271]

約数ペア:

[(1, 19862271), (3, 6620757), (9, 2206919), (11, 1805661), (13, 1527867), (23, 863577), (33, 601887), (39, 509289), (61, 325611), (69, 287859), (99, 200629), (117, 169763), (121, 164151), (143, 138897), (183, 108537), (207, 95953), (253, 78507), (299, 66429), (363, 54717), (429, 46299), (549, 36179), (671, 29601), (759, 26169), (793, 25047), (897, 22143), (1089, 18239), (1287, 15433), (1403, 14157), (1573, 12627), (2013, 9867), (2277, 8723), (2379, 8349), (2691, 7381), (2783, 7137), (3289, 6039), (4209, 4719)]