19890129

素因数分解:

$3^1\times 7^2\times {\mathrm{269}}^1\times {\mathrm{503}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 31026240

約数和(自身を除く): 11136111

約数列:

[1, 3, 7, 21, 49, 147, 269, 503, 807, 1509, 1883, 3521, 5649, 10563, 13181, 24647, 39543, 73941, 135307, 405921, 947149, 2841447, 6630043, 19890129]

約数ペア:

[(1, 19890129), (3, 6630043), (7, 2841447), (21, 947149), (49, 405921), (147, 135307), (269, 73941), (503, 39543), (807, 24647), (1509, 13181), (1883, 10563), (3521, 5649)]