18630906

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{631}}^1$

素因数の和:699

約数の個数: 64

約数和(自身を含む): 46110720

約数和(自身を除く): 27479814

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 37, 38, 42, 57, 74, 111, 114, 133, 222, 259, 266, 399, 518, 631, 703, 777, 798, 1262, 1406, 1554, 1893, 2109, 3786, 4218, 4417, 4921, 8834, 9842, 11989, 13251, 14763, 23347, 23978, 26502, 29526, 35967, 46694, 70041, 71934, 83923, 140082, 163429, 167846, 251769, 326858, 443593, 490287, 503538, 887186, 980574, 1330779, 2661558, 3105151, 6210302, 9315453, 18630906]

約数ペア:

[(1, 18630906), (2, 9315453), (3, 6210302), (6, 3105151), (7, 2661558), (14, 1330779), (19, 980574), (21, 887186), (37, 503538), (38, 490287), (42, 443593), (57, 326858), (74, 251769), (111, 167846), (114, 163429), (133, 140082), (222, 83923), (259, 71934), (266, 70041), (399, 46694), (518, 35967), (631, 29526), (703, 26502), (777, 23978), (798, 23347), (1262, 14763), (1406, 13251), (1554, 11989), (1893, 9842), (2109, 8834), (3786, 4921), (4218, 4417)]