19961685

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 37464960

約数和(自身を除く): 17503275

約数列:

[1, 3, 5, 9, 15, 19, 37, 45, 57, 95, 111, 171, 185, 285, 333, 555, 631, 703, 855, 1665, 1893, 2109, 3155, 3515, 5679, 6327, 9465, 10545, 11989, 23347, 28395, 31635, 35967, 59945, 70041, 107901, 116735, 179835, 210123, 350205, 443593, 539505, 1050615, 1330779, 2217965, 3992337, 6653895, 19961685]

約数ペア:

[(1, 19961685), (3, 6653895), (5, 3992337), (9, 2217965), (15, 1330779), (19, 1050615), (37, 539505), (45, 443593), (57, 350205), (95, 210123), (111, 179835), (171, 116735), (185, 107901), (285, 70041), (333, 59945), (555, 35967), (631, 31635), (703, 28395), (855, 23347), (1665, 11989), (1893, 10545), (2109, 9465), (3155, 6327), (3515, 5679)]