18638715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3847}}^1$

素因数の和:3891

約数の個数: 32

約数和(自身を含む): 33246720

約数和(自身を除く): 14608005

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 3847, 4845, 11541, 19235, 57705, 65399, 73093, 196197, 219279, 326995, 365465, 980985, 1096395, 1242581, 3727743, 6212905, 18638715]

約数ペア:

[(1, 18638715), (3, 6212905), (5, 3727743), (15, 1242581), (17, 1096395), (19, 980985), (51, 365465), (57, 326995), (85, 219279), (95, 196197), (255, 73093), (285, 65399), (323, 57705), (969, 19235), (1615, 11541), (3847, 4845)]