21703770

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1993}}^1$

素因数の和:2028

約数の個数: 72

約数和(自身を含む): 62057268

約数和(自身を除く): 40353498

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 121, 165, 198, 242, 330, 363, 495, 605, 726, 990, 1089, 1210, 1815, 1993, 2178, 3630, 3986, 5445, 5979, 9965, 10890, 11958, 17937, 19930, 21923, 29895, 35874, 43846, 59790, 65769, 89685, 109615, 131538, 179370, 197307, 219230, 241153, 328845, 394614, 482306, 657690, 723459, 986535, 1205765, 1446918, 1973070, 2170377, 2411530, 3617295, 4340754, 7234590, 10851885, 21703770]

約数ペア:

[(1, 21703770), (2, 10851885), (3, 7234590), (5, 4340754), (6, 3617295), (9, 2411530), (10, 2170377), (11, 1973070), (15, 1446918), (18, 1205765), (22, 986535), (30, 723459), (33, 657690), (45, 482306), (55, 394614), (66, 328845), (90, 241153), (99, 219230), (110, 197307), (121, 179370), (165, 131538), (198, 109615), (242, 89685), (330, 65769), (363, 59790), (495, 43846), (605, 35874), (726, 29895), (990, 21923), (1089, 19930), (1210, 17937), (1815, 11958), (1993, 10890), (2178, 9965), (3630, 5979), (3986, 5445)]