19017726

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{571}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 47663616

約数和(自身を除く): 28645890

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 61, 78, 91, 122, 182, 183, 273, 366, 427, 546, 571, 793, 854, 1142, 1281, 1586, 1713, 2379, 2562, 3426, 3997, 4758, 5551, 7423, 7994, 11102, 11991, 14846, 16653, 22269, 23982, 33306, 34831, 44538, 51961, 69662, 103922, 104493, 155883, 208986, 243817, 311766, 452803, 487634, 731451, 905606, 1358409, 1462902, 2716818, 3169621, 6339242, 9508863, 19017726]

約数ペア:

[(1, 19017726), (2, 9508863), (3, 6339242), (6, 3169621), (7, 2716818), (13, 1462902), (14, 1358409), (21, 905606), (26, 731451), (39, 487634), (42, 452803), (61, 311766), (78, 243817), (91, 208986), (122, 155883), (182, 104493), (183, 103922), (273, 69662), (366, 51961), (427, 44538), (546, 34831), (571, 33306), (793, 23982), (854, 22269), (1142, 16653), (1281, 14846), (1586, 11991), (1713, 11102), (2379, 7994), (2562, 7423), (3426, 5551), (3997, 4758)]