16686618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 38019072

約数和(自身を除く): 21332454

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 67, 78, 93, 103, 134, 186, 201, 206, 309, 402, 403, 618, 806, 871, 1209, 1339, 1742, 2077, 2418, 2613, 2678, 3193, 4017, 4154, 5226, 6231, 6386, 6901, 8034, 9579, 12462, 13802, 19158, 20703, 27001, 41406, 41509, 54002, 81003, 83018, 89713, 124527, 162006, 179426, 213931, 249054, 269139, 427862, 538278, 641793, 1283586, 2781103, 5562206, 8343309, 16686618]

約数ペア:

[(1, 16686618), (2, 8343309), (3, 5562206), (6, 2781103), (13, 1283586), (26, 641793), (31, 538278), (39, 427862), (62, 269139), (67, 249054), (78, 213931), (93, 179426), (103, 162006), (134, 124527), (186, 89713), (201, 83018), (206, 81003), (309, 54002), (402, 41509), (403, 41406), (618, 27001), (806, 20703), (871, 19158), (1209, 13802), (1339, 12462), (1742, 9579), (2077, 8034), (2418, 6901), (2613, 6386), (2678, 6231), (3193, 5226), (4017, 4154)]