21957495

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{7211}}^1$

素因数の和:7255

約数の個数: 32

約数和(自身を含む): 41541120

約数和(自身を除く): 19583625

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 7211, 21633, 36055, 50477, 108165, 151431, 209119, 252385, 627357, 757155, 1045595, 1463833, 3136785, 4391499, 7319165, 21957495]

約数ペア:

[(1, 21957495), (3, 7319165), (5, 4391499), (7, 3136785), (15, 1463833), (21, 1045595), (29, 757155), (35, 627357), (87, 252385), (105, 209119), (145, 151431), (203, 108165), (435, 50477), (609, 36055), (1015, 21633), (3045, 7211)]