20747454

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 53406720

約数和(自身を除く): 32659266

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 37, 39, 42, 74, 78, 79, 91, 111, 158, 169, 182, 222, 237, 259, 273, 338, 474, 481, 507, 518, 546, 553, 777, 962, 1014, 1027, 1106, 1183, 1443, 1554, 1659, 2054, 2366, 2886, 2923, 3081, 3318, 3367, 3549, 5846, 6162, 6253, 6734, 7098, 7189, 8769, 10101, 12506, 13351, 14378, 17538, 18759, 20202, 20461, 21567, 26702, 37518, 37999, 40053, 40922, 43134, 43771, 61383, 75998, 80106, 87542, 93457, 113997, 122766, 131313, 186914, 227994, 262626, 265993, 280371, 493987, 531986, 560742, 797979, 987974, 1481961, 1595958, 2963922, 3457909, 6915818, 10373727, 20747454]

約数ペア:

[(1, 20747454), (2, 10373727), (3, 6915818), (6, 3457909), (7, 2963922), (13, 1595958), (14, 1481961), (21, 987974), (26, 797979), (37, 560742), (39, 531986), (42, 493987), (74, 280371), (78, 265993), (79, 262626), (91, 227994), (111, 186914), (158, 131313), (169, 122766), (182, 113997), (222, 93457), (237, 87542), (259, 80106), (273, 75998), (338, 61383), (474, 43771), (481, 43134), (507, 40922), (518, 40053), (546, 37999), (553, 37518), (777, 26702), (962, 21567), (1014, 20461), (1027, 20202), (1106, 18759), (1183, 17538), (1443, 14378), (1554, 13351), (1659, 12506), (2054, 10101), (2366, 8769), (2886, 7189), (2923, 7098), (3081, 6734), (3318, 6253), (3367, 6162), (3549, 5846)]