21000659385

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{13033}}^1$

素因数の和:13218

約数の個数: 64

約数和(自身を含む): 36486858240

約数和(自身を除く): 15486198855

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 89, 213, 255, 267, 355, 445, 1065, 1207, 1335, 1513, 3621, 4539, 6035, 6319, 7565, 13033, 18105, 18957, 22695, 31595, 39099, 65165, 94785, 107423, 195495, 221561, 322269, 537115, 664683, 925343, 1107805, 1159937, 1611345, 2776029, 3323415, 3479811, 4626715, 5799685, 13880145, 15730831, 17399055, 19718929, 47192493, 59156787, 78654155, 82355527, 98594645, 235962465, 247066581, 295783935, 411777635, 1235332905, 1400043959, 4200131877, 7000219795, 21000659385]

約数ペア:

[(1, 21000659385), (3, 7000219795), (5, 4200131877), (15, 1400043959), (17, 1235332905), (51, 411777635), (71, 295783935), (85, 247066581), (89, 235962465), (213, 98594645), (255, 82355527), (267, 78654155), (355, 59156787), (445, 47192493), (1065, 19718929), (1207, 17399055), (1335, 15730831), (1513, 13880145), (3621, 5799685), (4539, 4626715), (6035, 3479811), (6319, 3323415), (7565, 2776029), (13033, 1611345), (18105, 1159937), (18957, 1107805), (22695, 925343), (31595, 664683), (39099, 537115), (65165, 322269), (94785, 221561), (107423, 195495)]