21956248

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 47628000

約数和(自身を除く): 25671752

約数列:

[1, 2, 4, 8, 17, 19, 29, 34, 38, 58, 68, 76, 116, 136, 152, 232, 293, 323, 493, 551, 586, 646, 986, 1102, 1172, 1292, 1972, 2204, 2344, 2584, 3944, 4408, 4981, 5567, 8497, 9367, 9962, 11134, 16994, 18734, 19924, 22268, 33988, 37468, 39848, 44536, 67976, 74936, 94639, 144449, 161443, 189278, 288898, 322886, 378556, 577796, 645772, 757112, 1155592, 1291544, 2744531, 5489062, 10978124, 21956248]

約数ペア:

[(1, 21956248), (2, 10978124), (4, 5489062), (8, 2744531), (17, 1291544), (19, 1155592), (29, 757112), (34, 645772), (38, 577796), (58, 378556), (68, 322886), (76, 288898), (116, 189278), (136, 161443), (152, 144449), (232, 94639), (293, 74936), (323, 67976), (493, 44536), (551, 39848), (586, 37468), (646, 33988), (986, 22268), (1102, 19924), (1172, 18734), (1292, 16994), (1972, 11134), (2204, 9962), (2344, 9367), (2584, 8497), (3944, 5567), (4408, 4981)]