21576435

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1\times {\mathrm{257}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 36037440

約数和(自身を除く): 14461005

約数列:

[1, 3, 5, 15, 29, 87, 145, 193, 257, 435, 579, 771, 965, 1285, 2895, 3855, 5597, 7453, 16791, 22359, 27985, 37265, 49601, 83955, 111795, 148803, 248005, 744015, 1438429, 4315287, 7192145, 21576435]

約数ペア:

[(1, 21576435), (3, 7192145), (5, 4315287), (15, 1438429), (29, 744015), (87, 248005), (145, 148803), (193, 111795), (257, 83955), (435, 49601), (579, 37265), (771, 27985), (965, 22359), (1285, 16791), (2895, 7453), (3855, 5597)]