21080158

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:145

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 18318242

約数列:

[1, 2, 11, 19, 22, 29, 37, 38, 47, 58, 74, 94, 209, 319, 407, 418, 517, 551, 638, 703, 814, 893, 1034, 1073, 1102, 1363, 1406, 1739, 1786, 2146, 2726, 3478, 6061, 7733, 9823, 11803, 12122, 14993, 15466, 19129, 19646, 20387, 23606, 25897, 29986, 33041, 38258, 40774, 50431, 51794, 66082, 100862, 224257, 284867, 363451, 448514, 554741, 569734, 726902, 958189, 1109482, 1916378, 10540079, 21080158]

約数ペア:

[(1, 21080158), (2, 10540079), (11, 1916378), (19, 1109482), (22, 958189), (29, 726902), (37, 569734), (38, 554741), (47, 448514), (58, 363451), (74, 284867), (94, 224257), (209, 100862), (319, 66082), (407, 51794), (418, 50431), (517, 40774), (551, 38258), (638, 33041), (703, 29986), (814, 25897), (893, 23606), (1034, 20387), (1073, 19646), (1102, 19129), (1363, 15466), (1406, 14993), (1739, 12122), (1786, 11803), (2146, 9823), (2726, 7733), (3478, 6061)]