21496095

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 17501409

約数列:

[1, 3, 5, 9, 15, 41, 45, 61, 123, 183, 191, 205, 305, 369, 549, 573, 615, 915, 955, 1719, 1845, 2501, 2745, 2865, 7503, 7831, 8595, 11651, 12505, 22509, 23493, 34953, 37515, 39155, 58255, 70479, 104859, 112545, 117465, 174765, 352395, 477691, 524295, 1433073, 2388455, 4299219, 7165365, 21496095]

約数ペア:

[(1, 21496095), (3, 7165365), (5, 4299219), (9, 2388455), (15, 1433073), (41, 524295), (45, 477691), (61, 352395), (123, 174765), (183, 117465), (191, 112545), (205, 104859), (305, 70479), (369, 58255), (549, 39155), (573, 37515), (615, 34953), (915, 23493), (955, 22509), (1719, 12505), (1845, 11651), (2501, 8595), (2745, 7831), (2865, 7503)]