19897815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6113}}^1$

素因数の和:6159

約数の個数: 32

約数和(自身を含む): 37564416

約数和(自身を除く): 17666601

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 93, 105, 155, 217, 465, 651, 1085, 3255, 6113, 18339, 30565, 42791, 91695, 128373, 189503, 213955, 568509, 641865, 947515, 1326521, 2842545, 3979563, 6632605, 19897815]

約数ペア:

[(1, 19897815), (3, 6632605), (5, 3979563), (7, 2842545), (15, 1326521), (21, 947515), (31, 641865), (35, 568509), (93, 213955), (105, 189503), (155, 128373), (217, 91695), (465, 42791), (651, 30565), (1085, 18339), (3255, 6113)]