19188385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:217

約数の個数: 32

約数和(自身を含む): 25608960

約数和(自身を除く): 6420575

約数列:

[1, 5, 19, 37, 53, 95, 103, 185, 265, 515, 703, 1007, 1957, 1961, 3515, 3811, 5035, 5459, 9785, 9805, 19055, 27295, 37259, 72409, 103721, 186295, 201983, 362045, 518605, 1009915, 3837677, 19188385]

約数ペア:

[(1, 19188385), (5, 3837677), (19, 1009915), (37, 518605), (53, 362045), (95, 201983), (103, 186295), (185, 103721), (265, 72409), (515, 37259), (703, 27295), (1007, 19055), (1957, 9805), (1961, 9785), (3515, 5459), (3811, 5035)]