21764760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 70917120

約数和(自身を除く): 49152360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 47, 51, 60, 68, 85, 94, 102, 120, 136, 141, 170, 188, 204, 227, 235, 255, 282, 340, 376, 408, 454, 470, 510, 564, 680, 681, 705, 799, 908, 940, 1020, 1128, 1135, 1362, 1410, 1598, 1816, 1880, 2040, 2270, 2397, 2724, 2820, 3196, 3405, 3859, 3995, 4540, 4794, 5448, 5640, 6392, 6810, 7718, 7990, 9080, 9588, 10669, 11577, 11985, 13620, 15436, 15980, 19176, 19295, 21338, 23154, 23970, 27240, 30872, 31960, 32007, 38590, 42676, 46308, 47940, 53345, 57885, 64014, 77180, 85352, 92616, 95880, 106690, 115770, 128028, 154360, 160035, 181373, 213380, 231540, 256056, 320070, 362746, 426760, 463080, 544119, 640140, 725492, 906865, 1088238, 1280280, 1450984, 1813730, 2176476, 2720595, 3627460, 4352952, 5441190, 7254920, 10882380, 21764760]

約数ペア:

[(1, 21764760), (2, 10882380), (3, 7254920), (4, 5441190), (5, 4352952), (6, 3627460), (8, 2720595), (10, 2176476), (12, 1813730), (15, 1450984), (17, 1280280), (20, 1088238), (24, 906865), (30, 725492), (34, 640140), (40, 544119), (47, 463080), (51, 426760), (60, 362746), (68, 320070), (85, 256056), (94, 231540), (102, 213380), (120, 181373), (136, 160035), (141, 154360), (170, 128028), (188, 115770), (204, 106690), (227, 95880), (235, 92616), (255, 85352), (282, 77180), (340, 64014), (376, 57885), (408, 53345), (454, 47940), (470, 46308), (510, 42676), (564, 38590), (680, 32007), (681, 31960), (705, 30872), (799, 27240), (908, 23970), (940, 23154), (1020, 21338), (1128, 19295), (1135, 19176), (1362, 15980), (1410, 15436), (1598, 13620), (1816, 11985), (1880, 11577), (2040, 10669), (2270, 9588), (2397, 9080), (2724, 7990), (2820, 7718), (3196, 6810), (3405, 6392), (3859, 5640), (3995, 5448), (4540, 4794)]