20288973

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{313}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 30385152

約数和(自身を除く): 10096179

約数列:

[1, 3, 17, 31, 41, 51, 93, 123, 313, 527, 697, 939, 1271, 1581, 2091, 3813, 5321, 9703, 12833, 15963, 21607, 29109, 38499, 64821, 164951, 218161, 397823, 494853, 654483, 1193469, 6762991, 20288973]

約数ペア:

[(1, 20288973), (3, 6762991), (17, 1193469), (31, 654483), (41, 494853), (51, 397823), (93, 218161), (123, 164951), (313, 64821), (527, 38499), (697, 29109), (939, 21607), (1271, 15963), (1581, 12833), (2091, 9703), (3813, 5321)]