18220923

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 33592320

約数和(自身を除く): 15371397

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 53, 63, 107, 119, 153, 159, 189, 321, 357, 371, 459, 477, 749, 901, 963, 1071, 1113, 1431, 1819, 2247, 2703, 2889, 3213, 3339, 5457, 5671, 6307, 6741, 8109, 10017, 12733, 16371, 17013, 18921, 20223, 24327, 38199, 39697, 49113, 51039, 56763, 96407, 114597, 119091, 153117, 170289, 289221, 343791, 357273, 674849, 867663, 1071819, 2024547, 2602989, 6073641, 18220923]

約数ペア:

[(1, 18220923), (3, 6073641), (7, 2602989), (9, 2024547), (17, 1071819), (21, 867663), (27, 674849), (51, 357273), (53, 343791), (63, 289221), (107, 170289), (119, 153117), (153, 119091), (159, 114597), (189, 96407), (321, 56763), (357, 51039), (371, 49113), (459, 39697), (477, 38199), (749, 24327), (901, 20223), (963, 18921), (1071, 17013), (1113, 16371), (1431, 12733), (1819, 10017), (2247, 8109), (2703, 6741), (2889, 6307), (3213, 5671), (3339, 5457)]