81841395

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2411}}^1$

素因数の和:2523

約数の個数: 32

約数和(自身を含む): 137078784

約数和(自身を除く): 55237389

約数列:

[1, 3, 5, 15, 31, 73, 93, 155, 219, 365, 465, 1095, 2263, 2411, 6789, 7233, 11315, 12055, 33945, 36165, 74741, 176003, 224223, 373705, 528009, 880015, 1121115, 2640045, 5456093, 16368279, 27280465, 81841395]

約数ペア:

[(1, 81841395), (3, 27280465), (5, 16368279), (15, 5456093), (31, 2640045), (73, 1121115), (93, 880015), (155, 528009), (219, 373705), (365, 224223), (465, 176003), (1095, 74741), (2263, 36165), (2411, 33945), (6789, 12055), (7233, 11315)]