18747195

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:715

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 12771525

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 607, 1065, 1821, 2059, 3035, 6177, 9105, 10295, 17603, 30885, 43097, 52809, 88015, 129291, 215485, 264045, 646455, 1249813, 3749439, 6249065, 18747195]

約数ペア:

[(1, 18747195), (3, 6249065), (5, 3749439), (15, 1249813), (29, 646455), (71, 264045), (87, 215485), (145, 129291), (213, 88015), (355, 52809), (435, 43097), (607, 30885), (1065, 17603), (1821, 10295), (2059, 9105), (3035, 6177)]