20716935

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{463}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 35189760

約数和(自身を除く): 14472825

約数列:

[1, 3, 5, 15, 19, 57, 95, 157, 285, 463, 471, 785, 1389, 2315, 2355, 2983, 6945, 8797, 8949, 14915, 26391, 43985, 44745, 72691, 131955, 218073, 363455, 1090365, 1381129, 4143387, 6905645, 20716935]

約数ペア:

[(1, 20716935), (3, 6905645), (5, 4143387), (15, 1381129), (19, 1090365), (57, 363455), (95, 218073), (157, 131955), (285, 72691), (463, 44745), (471, 43985), (785, 26391), (1389, 14915), (2315, 8949), (2355, 8797), (2983, 6945)]