19927785

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{751}}^1$

素因数の和:849

約数の個数: 32

約数和(自身を含む): 33569280

約数和(自身を除く): 13641495

約数列:

[1, 3, 5, 15, 29, 61, 87, 145, 183, 305, 435, 751, 915, 1769, 2253, 3755, 5307, 8845, 11265, 21779, 26535, 45811, 65337, 108895, 137433, 229055, 326685, 687165, 1328519, 3985557, 6642595, 19927785]

約数ペア:

[(1, 19927785), (3, 6642595), (5, 3985557), (15, 1328519), (29, 687165), (61, 326685), (87, 229055), (145, 137433), (183, 108895), (305, 65337), (435, 45811), (751, 26535), (915, 21779), (1769, 11265), (2253, 8845), (3755, 5307)]