17720703

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 35105616

約数和(自身を除く): 17384913

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 49, 63, 77, 91, 99, 117, 143, 147, 231, 273, 281, 429, 441, 539, 637, 693, 819, 843, 1001, 1287, 1617, 1911, 1967, 2529, 3003, 3091, 3653, 4851, 5733, 5901, 7007, 9009, 9273, 10959, 13769, 17703, 21021, 21637, 25571, 27819, 32877, 40183, 41307, 63063, 64911, 76713, 120549, 123921, 151459, 178997, 194733, 230139, 281281, 361647, 454377, 536991, 843843, 1363131, 1610973, 1968967, 2531529, 5906901, 17720703]

約数ペア:

[(1, 17720703), (3, 5906901), (7, 2531529), (9, 1968967), (11, 1610973), (13, 1363131), (21, 843843), (33, 536991), (39, 454377), (49, 361647), (63, 281281), (77, 230139), (91, 194733), (99, 178997), (117, 151459), (143, 123921), (147, 120549), (231, 76713), (273, 64911), (281, 63063), (429, 41307), (441, 40183), (539, 32877), (637, 27819), (693, 25571), (819, 21637), (843, 21021), (1001, 17703), (1287, 13769), (1617, 10959), (1911, 9273), (1967, 9009), (2529, 7007), (3003, 5901), (3091, 5733), (3653, 4851)]