18786174

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:317

約数の個数: 64

約数和(自身を含む): 43960320

約数和(自身を除く): 25174146

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 71, 114, 142, 209, 211, 213, 418, 422, 426, 627, 633, 781, 1254, 1266, 1349, 1562, 2321, 2343, 2698, 4009, 4047, 4642, 4686, 6963, 8018, 8094, 12027, 13926, 14839, 14981, 24054, 29678, 29962, 44099, 44517, 44943, 88198, 89034, 89886, 132297, 164791, 264594, 284639, 329582, 494373, 569278, 853917, 988746, 1707834, 3131029, 6262058, 9393087, 18786174]

約数ペア:

[(1, 18786174), (2, 9393087), (3, 6262058), (6, 3131029), (11, 1707834), (19, 988746), (22, 853917), (33, 569278), (38, 494373), (57, 329582), (66, 284639), (71, 264594), (114, 164791), (142, 132297), (209, 89886), (211, 89034), (213, 88198), (418, 44943), (422, 44517), (426, 44099), (627, 29962), (633, 29678), (781, 24054), (1254, 14981), (1266, 14839), (1349, 13926), (1562, 12027), (2321, 8094), (2343, 8018), (2698, 6963), (4009, 4686), (4047, 4642)]