18829965

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 40777344

約数和(自身を除く): 21947379

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 49, 51, 55, 77, 85, 105, 119, 137, 147, 165, 187, 231, 245, 255, 357, 385, 411, 539, 561, 595, 685, 735, 833, 935, 959, 1155, 1309, 1507, 1617, 1785, 2055, 2329, 2499, 2695, 2805, 2877, 3927, 4165, 4521, 4795, 6545, 6713, 6987, 7535, 8085, 9163, 10549, 11645, 12495, 14385, 16303, 19635, 20139, 22605, 25619, 27489, 31647, 33565, 34935, 45815, 48909, 52745, 73843, 76857, 81515, 100695, 114121, 128095, 137445, 158235, 179333, 221529, 244545, 342363, 369215, 384285, 537999, 570605, 896665, 1107645, 1255331, 1711815, 2689995, 3765993, 6276655, 18829965]

約数ペア:

[(1, 18829965), (3, 6276655), (5, 3765993), (7, 2689995), (11, 1711815), (15, 1255331), (17, 1107645), (21, 896665), (33, 570605), (35, 537999), (49, 384285), (51, 369215), (55, 342363), (77, 244545), (85, 221529), (105, 179333), (119, 158235), (137, 137445), (147, 128095), (165, 114121), (187, 100695), (231, 81515), (245, 76857), (255, 73843), (357, 52745), (385, 48909), (411, 45815), (539, 34935), (561, 33565), (595, 31647), (685, 27489), (735, 25619), (833, 22605), (935, 20139), (959, 19635), (1155, 16303), (1309, 14385), (1507, 12495), (1617, 11645), (1785, 10549), (2055, 9163), (2329, 8085), (2499, 7535), (2695, 6987), (2805, 6713), (2877, 6545), (3927, 4795), (4165, 4521)]