26981703

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 72

約数和(自身を含む): 49617360

約数和(自身を除く): 22635657

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 59, 61, 63, 119, 147, 153, 177, 183, 357, 413, 427, 441, 531, 549, 833, 1003, 1037, 1071, 1239, 1281, 2499, 2891, 2989, 3009, 3111, 3599, 3717, 3843, 7021, 7259, 7497, 8673, 8967, 9027, 9333, 10797, 21063, 21777, 25193, 26019, 26901, 32391, 49147, 50813, 61183, 63189, 65331, 75579, 147441, 152439, 176351, 183549, 226737, 428281, 442323, 457317, 529053, 550647, 1284843, 1587159, 2997967, 3854529, 8993901, 26981703]

約数ペア:

[(1, 26981703), (3, 8993901), (7, 3854529), (9, 2997967), (17, 1587159), (21, 1284843), (49, 550647), (51, 529053), (59, 457317), (61, 442323), (63, 428281), (119, 226737), (147, 183549), (153, 176351), (177, 152439), (183, 147441), (357, 75579), (413, 65331), (427, 63189), (441, 61183), (531, 50813), (549, 49147), (833, 32391), (1003, 26901), (1037, 26019), (1071, 25193), (1239, 21777), (1281, 21063), (2499, 10797), (2891, 9333), (2989, 9027), (3009, 8967), (3111, 8673), (3599, 7497), (3717, 7259), (3843, 7021)]