18947775

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:241

約数の個数: 96

約数和(自身を含む): 41568768

約数和(自身を除く): 22620993

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 25, 33, 35, 51, 55, 75, 77, 85, 105, 119, 165, 175, 187, 193, 231, 255, 275, 357, 385, 425, 525, 561, 579, 595, 825, 935, 965, 1155, 1275, 1309, 1351, 1785, 1925, 2123, 2805, 2895, 2975, 3281, 3927, 4053, 4675, 4825, 5775, 6369, 6545, 6755, 8925, 9843, 10615, 14025, 14475, 14861, 16405, 19635, 20265, 22967, 31845, 32725, 33775, 36091, 44583, 49215, 53075, 68901, 74305, 82025, 98175, 101325, 108273, 114835, 159225, 180455, 222915, 246075, 252637, 344505, 371525, 541365, 574175, 757911, 902275, 1114575, 1263185, 1722525, 2706825, 3789555, 6315925, 18947775]

約数ペア:

[(1, 18947775), (3, 6315925), (5, 3789555), (7, 2706825), (11, 1722525), (15, 1263185), (17, 1114575), (21, 902275), (25, 757911), (33, 574175), (35, 541365), (51, 371525), (55, 344505), (75, 252637), (77, 246075), (85, 222915), (105, 180455), (119, 159225), (165, 114835), (175, 108273), (187, 101325), (193, 98175), (231, 82025), (255, 74305), (275, 68901), (357, 53075), (385, 49215), (425, 44583), (525, 36091), (561, 33775), (579, 32725), (595, 31845), (825, 22967), (935, 20265), (965, 19635), (1155, 16405), (1275, 14861), (1309, 14475), (1351, 14025), (1785, 10615), (1925, 9843), (2123, 8925), (2805, 6755), (2895, 6545), (2975, 6369), (3281, 5775), (3927, 4825), (4053, 4675)]