20147007405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{296563}}^1$

素因数の和:297225

約数の個数: 32

約数和(自身を含む): 36897306624

約数和(自身を除く): 16750299219

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 647, 1941, 3235, 4529, 9705, 13587, 22645, 67935, 296563, 889689, 1482815, 2075941, 4448445, 6227823, 10379705, 31139115, 191876261, 575628783, 959381305, 1343133827, 2878143915, 4029401481, 6715669135, 20147007405]

約数ペア:

[(1, 20147007405), (3, 6715669135), (5, 4029401481), (7, 2878143915), (15, 1343133827), (21, 959381305), (35, 575628783), (105, 191876261), (647, 31139115), (1941, 10379705), (3235, 6227823), (4529, 4448445), (9705, 2075941), (13587, 1482815), (22645, 889689), (67935, 296563)]