21084210

素因数分解:

$2^1\times 3^2\times 5^1\times 7^3\times {\mathrm{683}}^1$

素因数の和:717

約数の個数: 96

約数和(自身を含む): 64022400

約数和(自身を除く): 42938190

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 343, 441, 490, 630, 683, 686, 735, 882, 1029, 1366, 1470, 1715, 2049, 2058, 2205, 3087, 3415, 3430, 4098, 4410, 4781, 5145, 6147, 6174, 6830, 9562, 10245, 10290, 12294, 14343, 15435, 20490, 23905, 28686, 30735, 30870, 33467, 43029, 47810, 61470, 66934, 71715, 86058, 100401, 143430, 167335, 200802, 215145, 234269, 301203, 334670, 430290, 468538, 502005, 602406, 702807, 1004010, 1171345, 1405614, 1506015, 2108421, 2342690, 3012030, 3514035, 4216842, 7028070, 10542105, 21084210]

約数ペア:

[(1, 21084210), (2, 10542105), (3, 7028070), (5, 4216842), (6, 3514035), (7, 3012030), (9, 2342690), (10, 2108421), (14, 1506015), (15, 1405614), (18, 1171345), (21, 1004010), (30, 702807), (35, 602406), (42, 502005), (45, 468538), (49, 430290), (63, 334670), (70, 301203), (90, 234269), (98, 215145), (105, 200802), (126, 167335), (147, 143430), (210, 100401), (245, 86058), (294, 71715), (315, 66934), (343, 61470), (441, 47810), (490, 43029), (630, 33467), (683, 30870), (686, 30735), (735, 28686), (882, 23905), (1029, 20490), (1366, 15435), (1470, 14343), (1715, 12294), (2049, 10290), (2058, 10245), (2205, 9562), (3087, 6830), (3415, 6174), (3430, 6147), (4098, 5145), (4410, 4781)]