21897488

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{787}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 44556672

約数和(自身を除く): 22659184

約数列:

[1, 2, 4, 8, 16, 37, 47, 74, 94, 148, 188, 296, 376, 592, 752, 787, 1574, 1739, 3148, 3478, 6296, 6956, 12592, 13912, 27824, 29119, 36989, 58238, 73978, 116476, 147956, 232952, 295912, 465904, 591824, 1368593, 2737186, 5474372, 10948744, 21897488]

約数ペア:

[(1, 21897488), (2, 10948744), (4, 5474372), (8, 2737186), (16, 1368593), (37, 591824), (47, 465904), (74, 295912), (94, 232952), (148, 147956), (188, 116476), (296, 73978), (376, 58238), (592, 36989), (752, 29119), (787, 27824), (1574, 13912), (1739, 12592), (3148, 6956), (3478, 6296)]