18985131

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:776

約数の個数: 32

約数和(自身を含む): 31046400

約数和(自身を除く): 12061269

約数列:

[1, 3, 9, 11, 27, 33, 97, 99, 291, 297, 659, 873, 1067, 1977, 2619, 3201, 5931, 7249, 9603, 17793, 21747, 28809, 63923, 65241, 191769, 195723, 575307, 703153, 1725921, 2109459, 6328377, 18985131]

約数ペア:

[(1, 18985131), (3, 6328377), (9, 2109459), (11, 1725921), (27, 703153), (33, 575307), (97, 195723), (99, 191769), (291, 65241), (297, 63923), (659, 28809), (873, 21747), (1067, 17793), (1977, 9603), (2619, 7249), (3201, 5931)]