19829355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 39782400

約数和(自身を除く): 19953045

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 73, 91, 105, 195, 199, 219, 273, 365, 455, 511, 597, 949, 995, 1095, 1365, 1393, 1533, 2555, 2587, 2847, 2985, 4179, 4745, 6643, 6965, 7665, 7761, 12935, 14235, 14527, 18109, 19929, 20895, 33215, 38805, 43581, 54327, 72635, 90545, 99645, 101689, 188851, 217905, 271635, 305067, 508445, 566553, 944255, 1321957, 1525335, 2832765, 3965871, 6609785, 19829355]

約数ペア:

[(1, 19829355), (3, 6609785), (5, 3965871), (7, 2832765), (13, 1525335), (15, 1321957), (21, 944255), (35, 566553), (39, 508445), (65, 305067), (73, 271635), (91, 217905), (105, 188851), (195, 101689), (199, 99645), (219, 90545), (273, 72635), (365, 54327), (455, 43581), (511, 38805), (597, 33215), (949, 20895), (995, 19929), (1095, 18109), (1365, 14527), (1393, 14235), (1533, 12935), (2555, 7761), (2587, 7665), (2847, 6965), (2985, 6643), (4179, 4745)]