12213495

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 25608960

約数和(自身を除く): 13395465

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 49, 63, 87, 105, 145, 147, 191, 203, 245, 261, 315, 435, 441, 573, 609, 735, 955, 1015, 1305, 1337, 1421, 1719, 1827, 2205, 2865, 3045, 4011, 4263, 5539, 6685, 7105, 8595, 9135, 9359, 12033, 12789, 16617, 20055, 21315, 27695, 28077, 38773, 46795, 49851, 60165, 63945, 83085, 84231, 116319, 140385, 193865, 249255, 271411, 348957, 421155, 581595, 814233, 1357055, 1744785, 2442699, 4071165, 12213495]

約数ペア:

[(1, 12213495), (3, 4071165), (5, 2442699), (7, 1744785), (9, 1357055), (15, 814233), (21, 581595), (29, 421155), (35, 348957), (45, 271411), (49, 249255), (63, 193865), (87, 140385), (105, 116319), (145, 84231), (147, 83085), (191, 63945), (203, 60165), (245, 49851), (261, 46795), (315, 38773), (435, 28077), (441, 27695), (573, 21315), (609, 20055), (735, 16617), (955, 12789), (1015, 12033), (1305, 9359), (1337, 9135), (1421, 8595), (1719, 7105), (1827, 6685), (2205, 5539), (2865, 4263), (3045, 4011)]