21237080255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2633}}^1\times {\mathrm{3061}}^1$

素因数の和:5747

約数の個数: 32

約数和(自身を含む): 27873704448

約数和(自身を除く): 6636624193

約数列:

[1, 5, 17, 31, 85, 155, 527, 2633, 2635, 3061, 13165, 15305, 44761, 52037, 81623, 94891, 223805, 260185, 408115, 474455, 1387591, 1613147, 6937955, 8059613, 8065735, 40298065, 137013421, 249848003, 685067105, 1249240015, 4247416051, 21237080255]

約数ペア:

[(1, 21237080255), (5, 4247416051), (17, 1249240015), (31, 685067105), (85, 249848003), (155, 137013421), (527, 40298065), (2633, 8065735), (2635, 8059613), (3061, 6937955), (13165, 1613147), (15305, 1387591), (44761, 474455), (52037, 408115), (81623, 260185), (94891, 223805)]