21470295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{641}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 44375040

約数和(自身を除く): 22904745

約数列:

[1, 3, 5, 7, 11, 15, 21, 29, 33, 35, 55, 77, 87, 105, 145, 165, 203, 231, 319, 385, 435, 609, 641, 957, 1015, 1155, 1595, 1923, 2233, 3045, 3205, 4487, 4785, 6699, 7051, 9615, 11165, 13461, 18589, 21153, 22435, 33495, 35255, 49357, 55767, 67305, 92945, 105765, 130123, 148071, 204479, 246785, 278835, 390369, 613437, 650615, 740355, 1022395, 1431353, 1951845, 3067185, 4294059, 7156765, 21470295]

約数ペア:

[(1, 21470295), (3, 7156765), (5, 4294059), (7, 3067185), (11, 1951845), (15, 1431353), (21, 1022395), (29, 740355), (33, 650615), (35, 613437), (55, 390369), (77, 278835), (87, 246785), (105, 204479), (145, 148071), (165, 130123), (203, 105765), (231, 92945), (319, 67305), (385, 55767), (435, 49357), (609, 35255), (641, 33495), (957, 22435), (1015, 21153), (1155, 18589), (1595, 13461), (1923, 11165), (2233, 9615), (3045, 7051), (3205, 6699), (4487, 4785)]