2105775

素因数分解:

$3^2\times 5^2\times 7^2\times {\mathrm{191}}^1$

素因数の和:221

約数の個数: 54

約数和(自身を含む): 4410432

約数和(自身を除く): 2304657

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 49, 63, 75, 105, 147, 175, 191, 225, 245, 315, 441, 525, 573, 735, 955, 1225, 1337, 1575, 1719, 2205, 2865, 3675, 4011, 4775, 6685, 8595, 9359, 11025, 12033, 14325, 20055, 28077, 33425, 42975, 46795, 60165, 84231, 100275, 140385, 233975, 300825, 421155, 701925, 2105775]

約数ペア:

[(1, 2105775), (3, 701925), (5, 421155), (7, 300825), (9, 233975), (15, 140385), (21, 100275), (25, 84231), (35, 60165), (45, 46795), (49, 42975), (63, 33425), (75, 28077), (105, 20055), (147, 14325), (175, 12033), (191, 11025), (225, 9359), (245, 8595), (315, 6685), (441, 4775), (525, 4011), (573, 3675), (735, 2865), (955, 2205), (1225, 1719), (1337, 1575)]