21393658

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 41287680

約数和(自身を除く): 19894022

約数列:

[1, 2, 11, 13, 19, 22, 26, 31, 38, 62, 127, 143, 209, 247, 254, 286, 341, 403, 418, 494, 589, 682, 806, 1178, 1397, 1651, 2413, 2717, 2794, 3302, 3937, 4433, 4826, 5434, 6479, 7657, 7874, 8866, 12958, 15314, 18161, 26543, 31369, 36322, 43307, 51181, 53086, 62738, 74803, 84227, 86614, 102362, 149606, 168454, 345059, 562991, 690118, 822833, 972439, 1125982, 1645666, 1944878, 10696829, 21393658]

約数ペア:

[(1, 21393658), (2, 10696829), (11, 1944878), (13, 1645666), (19, 1125982), (22, 972439), (26, 822833), (31, 690118), (38, 562991), (62, 345059), (127, 168454), (143, 149606), (209, 102362), (247, 86614), (254, 84227), (286, 74803), (341, 62738), (403, 53086), (418, 51181), (494, 43307), (589, 36322), (682, 31369), (806, 26543), (1178, 18161), (1397, 15314), (1651, 12958), (2413, 8866), (2717, 7874), (2794, 7657), (3302, 6479), (3937, 5434), (4433, 4826)]