18964242

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^2$

素因数の和:180

約数の個数: 72

約数和(自身を含む): 47857680

約数和(自身を除く): 28893438

約数列:

[1, 2, 3, 6, 9, 11, 18, 19, 22, 33, 38, 57, 66, 71, 99, 114, 142, 171, 198, 209, 213, 342, 418, 426, 627, 639, 781, 1254, 1278, 1349, 1562, 1881, 2343, 2698, 3762, 4047, 4686, 5041, 7029, 8094, 10082, 12141, 14058, 14839, 15123, 24282, 29678, 30246, 44517, 45369, 55451, 89034, 90738, 95779, 110902, 133551, 166353, 191558, 267102, 287337, 332706, 499059, 574674, 862011, 998118, 1053569, 1724022, 2107138, 3160707, 6321414, 9482121, 18964242]

約数ペア:

[(1, 18964242), (2, 9482121), (3, 6321414), (6, 3160707), (9, 2107138), (11, 1724022), (18, 1053569), (19, 998118), (22, 862011), (33, 574674), (38, 499059), (57, 332706), (66, 287337), (71, 267102), (99, 191558), (114, 166353), (142, 133551), (171, 110902), (198, 95779), (209, 90738), (213, 89034), (342, 55451), (418, 45369), (426, 44517), (627, 30246), (639, 29678), (781, 24282), (1254, 15123), (1278, 14839), (1349, 14058), (1562, 12141), (1881, 10082), (2343, 8094), (2698, 7029), (3762, 5041), (4047, 4686)]