18559971

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 30326400

約数和(自身を除く): 11766429

約数列:

[1, 3, 9, 17, 29, 47, 51, 87, 89, 141, 153, 261, 267, 423, 493, 799, 801, 1363, 1479, 1513, 2397, 2581, 4089, 4183, 4437, 4539, 7191, 7743, 12267, 12549, 13617, 23171, 23229, 37647, 43877, 69513, 71111, 121307, 131631, 208539, 213333, 363921, 394893, 639999, 1091763, 2062219, 6186657, 18559971]

約数ペア:

[(1, 18559971), (3, 6186657), (9, 2062219), (17, 1091763), (29, 639999), (47, 394893), (51, 363921), (87, 213333), (89, 208539), (141, 131631), (153, 121307), (261, 71111), (267, 69513), (423, 43877), (493, 37647), (799, 23229), (801, 23171), (1363, 13617), (1479, 12549), (1513, 12267), (2397, 7743), (2581, 7191), (4089, 4539), (4183, 4437)]