21016086

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:717

約数の個数: 64

約数和(自身を含む): 52663296

約数和(自身を除く): 31647210

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 61, 78, 91, 122, 182, 183, 273, 366, 427, 546, 631, 793, 854, 1262, 1281, 1586, 1893, 2379, 2562, 3786, 4417, 4758, 5551, 8203, 8834, 11102, 13251, 16406, 16653, 24609, 26502, 33306, 38491, 49218, 57421, 76982, 114842, 115473, 172263, 230946, 269437, 344526, 500383, 538874, 808311, 1000766, 1501149, 1616622, 3002298, 3502681, 7005362, 10508043, 21016086]

約数ペア:

[(1, 21016086), (2, 10508043), (3, 7005362), (6, 3502681), (7, 3002298), (13, 1616622), (14, 1501149), (21, 1000766), (26, 808311), (39, 538874), (42, 500383), (61, 344526), (78, 269437), (91, 230946), (122, 172263), (182, 115473), (183, 114842), (273, 76982), (366, 57421), (427, 49218), (546, 38491), (631, 33306), (793, 26502), (854, 24609), (1262, 16653), (1281, 16406), (1586, 13251), (1893, 11102), (2379, 8834), (2562, 8203), (3786, 5551), (4417, 4758)]