18258765

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 36205056

約数和(自身を除く): 17946291

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 53, 85, 105, 119, 159, 193, 255, 265, 357, 371, 579, 595, 795, 901, 965, 1113, 1351, 1785, 1855, 2703, 2895, 3281, 4053, 4505, 5565, 6307, 6755, 9843, 10229, 13515, 16405, 18921, 20265, 22967, 30687, 31535, 49215, 51145, 68901, 71603, 94605, 114835, 153435, 173893, 214809, 344505, 358015, 521679, 869465, 1074045, 1217251, 2608395, 3651753, 6086255, 18258765]

約数ペア:

[(1, 18258765), (3, 6086255), (5, 3651753), (7, 2608395), (15, 1217251), (17, 1074045), (21, 869465), (35, 521679), (51, 358015), (53, 344505), (85, 214809), (105, 173893), (119, 153435), (159, 114835), (193, 94605), (255, 71603), (265, 68901), (357, 51145), (371, 49215), (579, 31535), (595, 30687), (795, 22967), (901, 20265), (965, 18921), (1113, 16405), (1351, 13515), (1785, 10229), (1855, 9843), (2703, 6755), (2895, 6307), (3281, 5565), (4053, 4505)]