19001955

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{251}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 35852544

約数和(自身を除く): 16850589

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 103, 105, 147, 245, 251, 309, 515, 721, 735, 753, 1255, 1545, 1757, 2163, 3605, 3765, 5047, 5271, 8785, 10815, 12299, 15141, 25235, 25853, 26355, 36897, 61495, 75705, 77559, 129265, 180971, 184485, 387795, 542913, 904855, 1266797, 2714565, 3800391, 6333985, 19001955]

約数ペア:

[(1, 19001955), (3, 6333985), (5, 3800391), (7, 2714565), (15, 1266797), (21, 904855), (35, 542913), (49, 387795), (103, 184485), (105, 180971), (147, 129265), (245, 77559), (251, 75705), (309, 61495), (515, 36897), (721, 26355), (735, 25853), (753, 25235), (1255, 15141), (1545, 12299), (1757, 10815), (2163, 8785), (3605, 5271), (3765, 5047)]