20870235

素因数分解:

$3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7603}}^1$

素因数の和:7675

約数の個数: 24

約数和(自身を含む): 36772944

約数和(自身を除く): 15902709

約数列:

[1, 3, 5, 9, 15, 45, 61, 183, 305, 549, 915, 2745, 7603, 22809, 38015, 68427, 114045, 342135, 463783, 1391349, 2318915, 4174047, 6956745, 20870235]

約数ペア:

[(1, 20870235), (3, 6956745), (5, 4174047), (9, 2318915), (15, 1391349), (45, 463783), (61, 342135), (183, 114045), (305, 68427), (549, 38015), (915, 22809), (2745, 7603)]