21186472

素因数分解:

$2^3\times {\mathrm{29}}^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 42644160

約数和(自身を除く): 21457688

約数列:

[1, 2, 4, 8, 29, 47, 58, 67, 94, 116, 134, 188, 232, 268, 376, 536, 841, 1363, 1682, 1943, 2726, 3149, 3364, 3886, 5452, 6298, 6728, 7772, 10904, 12596, 15544, 25192, 39527, 56347, 79054, 91321, 112694, 158108, 182642, 225388, 316216, 365284, 450776, 730568, 2648309, 5296618, 10593236, 21186472]

約数ペア:

[(1, 21186472), (2, 10593236), (4, 5296618), (8, 2648309), (29, 730568), (47, 450776), (58, 365284), (67, 316216), (94, 225388), (116, 182642), (134, 158108), (188, 112694), (232, 91321), (268, 79054), (376, 56347), (536, 39527), (841, 25192), (1363, 15544), (1682, 12596), (1943, 10904), (2726, 7772), (3149, 6728), (3364, 6298), (3886, 5452)]