40821291

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 72134400

約数和(自身を除く): 31313109

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 67, 133, 171, 201, 399, 469, 509, 603, 1197, 1273, 1407, 1527, 3563, 3819, 4221, 4581, 8911, 9671, 10689, 11457, 26733, 29013, 32067, 34103, 67697, 80199, 87039, 102309, 203091, 238721, 306927, 609273, 647957, 716163, 1943871, 2148489, 4535699, 5831613, 13607097, 40821291]

約数ペア:

[(1, 40821291), (3, 13607097), (7, 5831613), (9, 4535699), (19, 2148489), (21, 1943871), (57, 716163), (63, 647957), (67, 609273), (133, 306927), (171, 238721), (201, 203091), (399, 102309), (469, 87039), (509, 80199), (603, 67697), (1197, 34103), (1273, 32067), (1407, 29013), (1527, 26733), (3563, 11457), (3819, 10689), (4221, 9671), (4581, 8911)]