21973900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16903}}^1$

素因数の和:16930

約数の個数: 36

約数和(自身を含む): 51354352

約数和(自身を除く): 29380452

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16903, 33806, 67612, 84515, 169030, 219739, 338060, 422575, 439478, 845150, 878956, 1098695, 1690300, 2197390, 4394780, 5493475, 10986950, 21973900]

約数ペア:

[(1, 21973900), (2, 10986950), (4, 5493475), (5, 4394780), (10, 2197390), (13, 1690300), (20, 1098695), (25, 878956), (26, 845150), (50, 439478), (52, 422575), (65, 338060), (100, 219739), (130, 169030), (260, 84515), (325, 67612), (650, 33806), (1300, 16903)]