19874365

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 28454400

約数和(自身を除く): 8580035

約数列:

[1, 5, 7, 35, 37, 103, 149, 185, 259, 515, 721, 745, 1043, 1295, 3605, 3811, 5215, 5513, 15347, 19055, 26677, 27565, 38591, 76735, 107429, 133385, 192955, 537145, 567839, 2839195, 3974873, 19874365]

約数ペア:

[(1, 19874365), (5, 3974873), (7, 2839195), (35, 567839), (37, 537145), (103, 192955), (149, 133385), (185, 107429), (259, 76735), (515, 38591), (721, 27565), (745, 26677), (1043, 19055), (1295, 15347), (3605, 5513), (3811, 5215)]