18407656

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{349}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 36540000

約数和(自身を除く): 18132344

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 347, 349, 694, 698, 1388, 1396, 2776, 2792, 6593, 6631, 13186, 13262, 26372, 26524, 52744, 53048, 121103, 242206, 484412, 968824, 2300957, 4601914, 9203828, 18407656]

約数ペア:

[(1, 18407656), (2, 9203828), (4, 4601914), (8, 2300957), (19, 968824), (38, 484412), (76, 242206), (152, 121103), (347, 53048), (349, 52744), (694, 26524), (698, 26372), (1388, 13262), (1396, 13186), (2776, 6631), (2792, 6593)]