21548982

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{647}}^1$

素因数の和:733

約数の個数: 64

約数和(自身を含む): 53996544

約数和(自身を除く): 32447562

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 61, 78, 91, 122, 182, 183, 273, 366, 427, 546, 647, 793, 854, 1281, 1294, 1586, 1941, 2379, 2562, 3882, 4529, 4758, 5551, 8411, 9058, 11102, 13587, 16653, 16822, 25233, 27174, 33306, 39467, 50466, 58877, 78934, 117754, 118401, 176631, 236802, 276269, 353262, 513071, 552538, 828807, 1026142, 1539213, 1657614, 3078426, 3591497, 7182994, 10774491, 21548982]

約数ペア:

[(1, 21548982), (2, 10774491), (3, 7182994), (6, 3591497), (7, 3078426), (13, 1657614), (14, 1539213), (21, 1026142), (26, 828807), (39, 552538), (42, 513071), (61, 353262), (78, 276269), (91, 236802), (122, 176631), (182, 118401), (183, 117754), (273, 78934), (366, 58877), (427, 50466), (546, 39467), (647, 33306), (793, 27174), (854, 25233), (1281, 16822), (1294, 16653), (1586, 13587), (1941, 11102), (2379, 9058), (2562, 8411), (3882, 5551), (4529, 4758)]