21897360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1789}}^1$

素因数の和:1825

約数の個数: 120

約数和(自身を含む): 77907960

約数和(自身を除く): 56010600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 1789, 2040, 2448, 3060, 3578, 4080, 5367, 6120, 7156, 8945, 10734, 12240, 14312, 16101, 17890, 21468, 26835, 28624, 30413, 32202, 35780, 42936, 53670, 60826, 64404, 71560, 80505, 85872, 91239, 107340, 121652, 128808, 143120, 152065, 161010, 182478, 214680, 243304, 257616, 273717, 304130, 322020, 364956, 429360, 456195, 486608, 547434, 608260, 644040, 729912, 912390, 1094868, 1216520, 1288080, 1368585, 1459824, 1824780, 2189736, 2433040, 2737170, 3649560, 4379472, 5474340, 7299120, 10948680, 21897360]

約数ペア:

[(1, 21897360), (2, 10948680), (3, 7299120), (4, 5474340), (5, 4379472), (6, 3649560), (8, 2737170), (9, 2433040), (10, 2189736), (12, 1824780), (15, 1459824), (16, 1368585), (17, 1288080), (18, 1216520), (20, 1094868), (24, 912390), (30, 729912), (34, 644040), (36, 608260), (40, 547434), (45, 486608), (48, 456195), (51, 429360), (60, 364956), (68, 322020), (72, 304130), (80, 273717), (85, 257616), (90, 243304), (102, 214680), (120, 182478), (136, 161010), (144, 152065), (153, 143120), (170, 128808), (180, 121652), (204, 107340), (240, 91239), (255, 85872), (272, 80505), (306, 71560), (340, 64404), (360, 60826), (408, 53670), (510, 42936), (612, 35780), (680, 32202), (720, 30413), (765, 28624), (816, 26835), (1020, 21468), (1224, 17890), (1360, 16101), (1530, 14312), (1789, 12240), (2040, 10734), (2448, 8945), (3060, 7156), (3578, 6120), (4080, 5367)]