21829115

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{59}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 34318080

約数和(自身を除く): 12488965

約数列:

[1, 5, 7, 11, 31, 35, 55, 59, 77, 155, 217, 295, 341, 385, 413, 649, 961, 1085, 1705, 1829, 2065, 2387, 3245, 4543, 4805, 6727, 9145, 10571, 11935, 12803, 20119, 22715, 33635, 52855, 56699, 64015, 73997, 100595, 140833, 283495, 369985, 396893, 623689, 704165, 1984465, 3118445, 4365823, 21829115]

約数ペア:

[(1, 21829115), (5, 4365823), (7, 3118445), (11, 1984465), (31, 704165), (35, 623689), (55, 396893), (59, 369985), (77, 283495), (155, 140833), (217, 100595), (295, 73997), (341, 64015), (385, 56699), (413, 52855), (649, 33635), (961, 22715), (1085, 20119), (1705, 12803), (1829, 11935), (2065, 10571), (2387, 9145), (3245, 6727), (4543, 4805)]