21107948

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 41023584

約数和(自身を除く): 19915636

約数列:

[1, 2, 4, 17, 34, 41, 67, 68, 82, 113, 134, 164, 226, 268, 452, 697, 1139, 1394, 1921, 2278, 2747, 2788, 3842, 4556, 4633, 5494, 7571, 7684, 9266, 10988, 15142, 18532, 30284, 46699, 78761, 93398, 128707, 157522, 186796, 257414, 310411, 315044, 514828, 620822, 1241644, 5276987, 10553974, 21107948]

約数ペア:

[(1, 21107948), (2, 10553974), (4, 5276987), (17, 1241644), (34, 620822), (41, 514828), (67, 315044), (68, 310411), (82, 257414), (113, 186796), (134, 157522), (164, 128707), (226, 93398), (268, 78761), (452, 46699), (697, 30284), (1139, 18532), (1394, 15142), (1921, 10988), (2278, 9266), (2747, 7684), (2788, 7571), (3842, 5494), (4556, 4633)]