21818970

素因数分解:

$2^1\times 3^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 112

約数和(自身を含む): 61146792

約数和(自身を除く): 39327822

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 73, 81, 82, 90, 123, 135, 146, 162, 205, 219, 243, 246, 270, 365, 369, 405, 410, 438, 486, 615, 657, 729, 730, 738, 810, 1095, 1107, 1215, 1230, 1314, 1458, 1845, 1971, 2190, 2214, 2430, 2993, 3285, 3321, 3645, 3690, 3942, 5535, 5913, 5986, 6570, 6642, 7290, 8979, 9855, 9963, 11070, 11826, 14965, 16605, 17739, 17958, 19710, 19926, 26937, 29565, 29889, 29930, 33210, 35478, 44895, 49815, 53217, 53874, 59130, 59778, 80811, 88695, 89790, 99630, 106434, 134685, 149445, 161622, 177390, 242433, 266085, 269370, 298890, 404055, 484866, 532170, 727299, 808110, 1212165, 1454598, 2181897, 2424330, 3636495, 4363794, 7272990, 10909485, 21818970]

約数ペア:

[(1, 21818970), (2, 10909485), (3, 7272990), (5, 4363794), (6, 3636495), (9, 2424330), (10, 2181897), (15, 1454598), (18, 1212165), (27, 808110), (30, 727299), (41, 532170), (45, 484866), (54, 404055), (73, 298890), (81, 269370), (82, 266085), (90, 242433), (123, 177390), (135, 161622), (146, 149445), (162, 134685), (205, 106434), (219, 99630), (243, 89790), (246, 88695), (270, 80811), (365, 59778), (369, 59130), (405, 53874), (410, 53217), (438, 49815), (486, 44895), (615, 35478), (657, 33210), (729, 29930), (730, 29889), (738, 29565), (810, 26937), (1095, 19926), (1107, 19710), (1215, 17958), (1230, 17739), (1314, 16605), (1458, 14965), (1845, 11826), (1971, 11070), (2190, 9963), (2214, 9855), (2430, 8979), (2993, 7290), (3285, 6642), (3321, 6570), (3645, 5986), (3690, 5913), (3942, 5535)]