21230280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3469}}^1$

素因数の和:3503

約数の個数: 96

約数和(自身を含む): 73078200

約数和(自身を除く): 51847920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 60, 68, 72, 85, 90, 102, 120, 136, 153, 170, 180, 204, 255, 306, 340, 360, 408, 510, 612, 680, 765, 1020, 1224, 1530, 2040, 3060, 3469, 6120, 6938, 10407, 13876, 17345, 20814, 27752, 31221, 34690, 41628, 52035, 58973, 62442, 69380, 83256, 104070, 117946, 124884, 138760, 156105, 176919, 208140, 235892, 249768, 294865, 312210, 353838, 416280, 471784, 530757, 589730, 624420, 707676, 884595, 1061514, 1179460, 1248840, 1415352, 1769190, 2123028, 2358920, 2653785, 3538380, 4246056, 5307570, 7076760, 10615140, 21230280]

約数ペア:

[(1, 21230280), (2, 10615140), (3, 7076760), (4, 5307570), (5, 4246056), (6, 3538380), (8, 2653785), (9, 2358920), (10, 2123028), (12, 1769190), (15, 1415352), (17, 1248840), (18, 1179460), (20, 1061514), (24, 884595), (30, 707676), (34, 624420), (36, 589730), (40, 530757), (45, 471784), (51, 416280), (60, 353838), (68, 312210), (72, 294865), (85, 249768), (90, 235892), (102, 208140), (120, 176919), (136, 156105), (153, 138760), (170, 124884), (180, 117946), (204, 104070), (255, 83256), (306, 69380), (340, 62442), (360, 58973), (408, 52035), (510, 41628), (612, 34690), (680, 31221), (765, 27752), (1020, 20814), (1224, 17345), (1530, 13876), (2040, 10407), (3060, 6938), (3469, 6120)]