21113235

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 45759168

約数和(自身を除く): 24645933

約数列:

[1, 3, 5, 9, 11, 13, 15, 17, 33, 39, 45, 51, 55, 65, 85, 99, 117, 143, 153, 165, 187, 193, 195, 221, 255, 429, 495, 561, 579, 585, 663, 715, 765, 935, 965, 1105, 1287, 1683, 1737, 1989, 2123, 2145, 2431, 2509, 2805, 2895, 3281, 3315, 6369, 6435, 7293, 7527, 8415, 8685, 9843, 9945, 10615, 12155, 12545, 16405, 19107, 21879, 22581, 27599, 29529, 31845, 36091, 36465, 37635, 42653, 49215, 82797, 95535, 108273, 109395, 112905, 127959, 137995, 147645, 180455, 213265, 248391, 324819, 383877, 413985, 469183, 541365, 639795, 1241955, 1407549, 1624095, 1919385, 2345915, 4222647, 7037745, 21113235]

約数ペア:

[(1, 21113235), (3, 7037745), (5, 4222647), (9, 2345915), (11, 1919385), (13, 1624095), (15, 1407549), (17, 1241955), (33, 639795), (39, 541365), (45, 469183), (51, 413985), (55, 383877), (65, 324819), (85, 248391), (99, 213265), (117, 180455), (143, 147645), (153, 137995), (165, 127959), (187, 112905), (193, 109395), (195, 108273), (221, 95535), (255, 82797), (429, 49215), (495, 42653), (561, 37635), (579, 36465), (585, 36091), (663, 31845), (715, 29529), (765, 27599), (935, 22581), (965, 21879), (1105, 19107), (1287, 16405), (1683, 12545), (1737, 12155), (1989, 10615), (2123, 9945), (2145, 9843), (2431, 8685), (2509, 8415), (2805, 7527), (2895, 7293), (3281, 6435), (3315, 6369)]