19618365

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 34784640

約数和(自身を除く): 15166275

約数列:

[1, 3, 5, 13, 15, 39, 65, 71, 109, 169, 195, 213, 327, 355, 507, 545, 845, 923, 1065, 1417, 1635, 2535, 2769, 4251, 4615, 7085, 7739, 11999, 13845, 18421, 21255, 23217, 35997, 38695, 55263, 59995, 92105, 100607, 116085, 179985, 276315, 301821, 503035, 1307891, 1509105, 3923673, 6539455, 19618365]

約数ペア:

[(1, 19618365), (3, 6539455), (5, 3923673), (13, 1509105), (15, 1307891), (39, 503035), (65, 301821), (71, 276315), (109, 179985), (169, 116085), (195, 100607), (213, 92105), (327, 59995), (355, 55263), (507, 38695), (545, 35997), (845, 23217), (923, 21255), (1065, 18421), (1417, 13845), (1635, 11999), (2535, 7739), (2769, 7085), (4251, 4615)]