20965965

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{467}}^1$

素因数の和:589

約数の個数: 32

約数和(自身を含む): 34909056

約数和(自身を除く): 13943091

約数列:

[1, 3, 5, 15, 41, 73, 123, 205, 219, 365, 467, 615, 1095, 1401, 2335, 2993, 7005, 8979, 14965, 19147, 34091, 44895, 57441, 95735, 102273, 170455, 287205, 511365, 1397731, 4193193, 6988655, 20965965]

約数ペア:

[(1, 20965965), (3, 6988655), (5, 4193193), (15, 1397731), (41, 511365), (73, 287205), (123, 170455), (205, 102273), (219, 95735), (365, 57441), (467, 44895), (615, 34091), (1095, 19147), (1401, 14965), (2335, 8979), (2993, 7005)]